Essential oils can add beautiful fragrance to a skin-care routine, but facial and body products are also places where a little restraint goes a long way.
Lavender can add a soft floral-herbal aroma to jojoba. Cedarwood can give a body oil a warmer, woodier character. Frankincense and geranium can create a more perfume-like fragrance for the hands and body.
What essential oils should not do is turn every homemade skin-care recipe into a medical treatment.
Essential oils are frequently promoted for acne, wrinkles, eczema, scars, dark spots, inflammation, wound healing, and almost every other skin concern imaginable. Some essential oils have been investigated for particular topical uses, but the evidence is much narrower than many of those claims suggest.
Essential oils can also irritate skin or trigger allergic contact dermatitis.
For everyday DIY skin care, a sensible approach is simple: keep concentrations low, use uncomplicated formulas, avoid applying essential oils to damaged or inflamed skin, and let your carrier oils do most of the actual skin-conditioning work.
The three recipes below are intentionally water-free oil blends. That makes them much easier for beginners and avoids the preservation issues associated with homemade lotions, creams, and water-based serums.
🌿 Why Use Essential Oils in Skin Care?
Essential oils are concentrated aromatic materials derived from plants.
When used appropriately in ordinary skin-care products, one of their clearest roles is fragrance. Depending on the oil, they can create aromas that are floral, herbal, woody, resinous, fresh, citrusy, minty, or spicy.
Some essential oils have also been researched for particular skin applications.
Tea tree oil, for example, has a small amount of evidence suggesting possible usefulness for acne, although the National Center for Complementary and Integrative Health emphasizes that the evidence remains limited and more research is needed.
Lavender is widely included in topical products and has also attracted considerable research interest, but lavender-containing products can cause allergic skin reactions in some people.
Essential oils can certainly be part of skin care.
They are not necessary for healthy skin, however, and fragrance-free products may actually be preferable for sensitive or reactive skin.
🧴 The Carrier Oil Does Most of the Conditioning
In these simple recipes, the carrier oil is doing most of the practical skin-care work.
Carrier oils act as emollients, helping the skin feel softer and reducing the dry or tight sensation that can occur after cleansing or bathing.
Jojoba is particularly convenient for facial oils because it has a light texture and good oxidative stability. Grapeseed is also relatively lightweight, while sweet almond and apricot kernel oils generally feel richer. Sunflower oil is another versatile option for body products, and fractionated coconut oil creates a light, easily spreadable base.
You do not need an exotic carrier oil simply because a product is homemade.
Choose one your skin already tolerates and whose texture you actually enjoy.
For a more detailed comparison, see the Carrier Oils Guide: How to Choose & Use Carrier Oils With Essential Oils.
💧 Why These Recipes Don’t Contain Water
None of the recipes below contains water, aloe juice, hydrosol, herbal tea, rosewater, or another water-based ingredient.
That is intentional.
Once a cosmetic contains a substantial water phase, microbiological safety becomes much more complicated. Water-based creams, lotions, and serums generally need an appropriate preservative system in addition to proper formulation and manufacturing practices.
Essential oils are not reliable substitutes for cosmetic preservatives.
Keeping these recipes anhydrous—or water-free—makes them much simpler and more appropriate for beginners.
🌸 Recipe 1: Gentle Lavender Jojoba Facial Oil
Facial skin deserves especially conservative use of fragrance and essential oils.
This simple facial oil uses only three drops of lavender in approximately 30 mL of jojoba.
Ingredients
- 1 ounce / 30 mL jojoba oil
- 3 drops lavender essential oil
Instructions
Add the lavender essential oil to a clean, dry bottle.
Add enough jojoba to bring the finished amount to approximately 30 mL.
Close the bottle tightly and gently roll or turn it several times to mix.
Label it with the ingredients and date.
Using the approximately 30-drops-per-milliliter convention followed throughout Aromatherapy Kitchen’s current dilution guides, three drops in 30 mL produces a concentration of roughly 0.3%.
The previous version of this article described this as approximately 0.5%, which reflected a different drop-size convention.
There is no need to add another drop simply to reach a particular number. This recipe is intentionally very lightly fragranced.
Drop measurements are inherently approximate because different essential oils, droppers, temperatures, and bottle openings produce different-sized drops.
🌿 How to Use the Lavender Facial Oil
Start with clean skin.
Place one or two drops of the finished facial oil onto your fingertips and gently smooth it over the face while avoiding the eyes and eyelids.
You do not need to coat your face heavily.
Some people prefer applying a small amount of facial oil after another moisturizer, particularly when the oil is being used primarily to add emollience rather than replace an entire skin-care routine.
If your face feels excessively oily, use less.
And if your skin simply does better without fragrance, plain jojoba is a perfectly reasonable alternative.
💜 Why Lavender?
Lavender’s popularity in skin care comes partly from its fragrance.
Its soft floral-herbal aroma is familiar, blends easily with other aromatic materials, and can make a simple evening skin-care routine feel a little more special.
Lavender is also surrounded by claims that it treats acne, wrinkles, scars, eczema, inflammation, wounds, and other skin concerns.
Those claims deserve caution.
Research involving lavender or some of its components does not turn this simple homemade facial oil into a treatment for a skin disease.
Think of the lavender primarily as the aromatic ingredient.
The jojoba provides most of the emollient skin-conditioning effect.
For more about lavender itself, see Lavender Essential Oil: Benefits, Uses, Safety & Aromatherapy Guide.
⚠️ Who Should Skip a Scented Facial Oil?
Essential oils are not appropriate for every face.
If your skin is extremely sensitive, has active dermatitis, reacts readily to fragrance, or has significant eczema, rosacea, inflammation, or a history of reactions to essential oils, a fragrance-free product is usually the simpler choice.
The same applies to broken, cracked, or otherwise damaged skin.
Fragrance is a well-established trigger for allergic contact dermatitis in susceptible people, and the face is one of the areas where fragrance reactions can appear.
Plain, fragrance-free skin care is not inferior skin care.
Sometimes it is exactly what reactive skin needs.
🌲 Recipe 2: Lavender Cedarwood Body Oil
Body skin can generally accommodate a somewhat higher fragrance concentration than facial skin, although individual tolerance still matters.
This simple blend combines lavender and cedarwood for a soft floral-woodland aroma.
Ingredients
- 1 ounce / 30 mL jojoba, sunflower, grapeseed, sweet almond, or another suitable carrier oil
- 3 drops lavender essential oil
- 3 drops cedarwood essential oil
Instructions
Add the lavender and cedarwood to a clean, dry bottle.
Add enough carrier oil to bring the finished amount to approximately 30 mL.
Close tightly and gently roll or turn the bottle to combine.
Label it with the ingredients, approximate concentration, and preparation date.
The six total essential-oil drops create a concentration of roughly 0.7% using the current Aromatherapy Kitchen dilution convention.
The previous article called six drops in 30 mL approximately 1%.
For a true approximate 1% concentration in 30 mL, you would use around 9 total drops.
There is no reason to make this recipe stronger just to reach 1%, however. A 0.7% body oil provides plenty of fragrance for many people.
🚿 How to Use Body Oil After a Shower
One of the easiest times to use body oil is shortly after bathing or showering.
Gently pat your skin rather than drying it completely. While the skin remains slightly damp, massage a modest amount of body oil onto areas such as the arms, legs, shoulders, hands, or feet.
Begin with less than you think you need.
You can always apply another small amount.
The goal is skin that feels comfortable and conditioned rather than an oily coating that transfers onto clothing and furniture.
🌿 Why Lavender and Cedarwood?
Lavender contributes a soft floral-herbal character while cedarwood adds a dry, woody note.
Together, the combination feels less traditionally floral than lavender alone and softer than straight cedarwood.
It can work especially well in an evening body-care routine.
You might use the oil after a shower before reading, stretching, journaling, or simply settling down for the evening.
The ritual can be enjoyable without claiming that the body oil treats stress, insomnia, anxiety, or another medical condition.
🌸 Recipe 3: Frankincense, Geranium & Lavender Hand and Body Oil
This third recipe has a slightly more perfume-like character.
Geranium provides a strong rosy-green floral aroma, frankincense adds resinous warmth and depth, and lavender helps connect the two.
Ingredients
- 1 ounce / 30 mL jojoba or another suitable carrier oil
- 2 drops lavender essential oil
- 2 drops frankincense essential oil
- 2 drops geranium essential oil
Instructions
Add the essential oils to a clean bottle and add enough carrier oil to bring the finished amount to approximately 30 mL.
Close tightly and gently roll the bottle between your hands.
Label it with the ingredients, approximate concentration, and date.
Six total essential-oil drops in 30 mL produces an approximate concentration of 0.7% under the current convention.
Use the finished oil sparingly on healthy, intact adult skin.
This blend works especially well on the hands, arms, and legs.
🌺 What This Blend Smells Like
Geranium can be surprisingly powerful.
Even two drops can give the finished oil a definite floral personality.
Lavender softens that rosy-green character, while frankincense adds warmth and resinous depth.
The finished aroma is floral, green, herbal, slightly woody, and resinous.
If geranium is too strong for your taste, reduce it to one drop and use three drops frankincense while keeping the total number of essential-oil drops the same.
This is a useful blending principle.
If you want to change the fragrance, adjust the ratio of the essential oils before automatically increasing the total concentration.
✨ What About Frankincense for Wrinkles?
Frankincense is one of the essential oils most aggressively marketed for mature skin.
You may encounter claims that frankincense essential oil erases wrinkles, tightens sagging skin, rebuilds collagen, removes scars, or reverses aging.
Good human clinical evidence does not establish those dramatic effects for ordinary frankincense essential oil.
Another frequent source of confusion is research involving Boswellia extracts.
Frankincense resins contain nonvolatile compounds such as boswellic acids that are not significant components of the steam-distilled essential oil. Research involving a Boswellia extract therefore cannot automatically be used as evidence that frankincense essential oil produces the same effect.
Use frankincense in this recipe because its aroma works beautifully with lavender and geranium.
It does not need to erase wrinkles to be worthwhile.
🌹 Does Geranium Essential Oil Have Skin Benefits?
Geranium is widely used in fragrances and cosmetic products.
Its rosy-green scent makes it particularly useful in body oils and natural perfume blends.
Like many essential oils, geranium and its constituents have demonstrated interesting biological activity in laboratory research.
Laboratory results, however, are not the same as clinical evidence showing that a homemade geranium oil treats a skin disease.
For ordinary DIY skin care, fragrance is the clearest role.
If you have a condition that requires treatment, choose products and therapies appropriate for that diagnosis rather than expecting a lightly scented body oil to act as medicine.
🧪 Why the Facial Blend Is Weaker Than the Body Blends
The face is an area where unnecessary fragrance exposure deserves extra caution.
Tisserand Institute’s general dilution guidance places facial cosmetics in a lower concentration range than ordinary body oils and lotions.
The lavender facial oil in this article is even more conservative than that general range, at approximately 0.3%.
That is intentional.
There is no requirement that every product contain as much essential oil as a general dilution chart allows.
A dilution chart provides guidance about concentration. It is not a target you must always reach.
For a product whose purpose is simply to add a little lavender fragrance to a facial oil, using less is perfectly reasonable.
📏 How Essential-Oil Dilution Works
A 1% dilution means that essential oil represents approximately 1% of the completed formula.
For consistency, Aromatherapy Kitchen now uses an approximate 30 drops per milliliter when translating percentages into home drop measurements.
Using that convention, a 30 mL finished product works out approximately as follows:
| Dilution | Approximate Drops in 30 mL |
|---|---|
| 0.5% | 4 drops |
| 1% | 9 drops |
| 2% | 18 drops |
| 3% | 27 drops |
This means the three-drop facial recipe is roughly 0.3%, while the six-drop body recipes are about 0.7%.
Drop measurements should always be understood as approximations.
Different oils have different viscosities and surface tensions, and different bottles and orifice reducers create different-sized drops.
For more precise cosmetic formulation, ingredients should be measured by weight or calibrated volume rather than relying solely on drop counts.
For a complete explanation, see the Essential Oil Dilution Guide and Essential Oil Dilution Chart.
🩹 Test New Skin-Care Products Carefully
Even natural fragrance ingredients can cause unwanted skin reactions.
Before incorporating a new leave-on skin-care product throughout your routine, testing it on a limited area can help identify obvious irritation.
The American Academy of Dermatology recommends applying a new skin-care product to a small test area twice daily for seven to ten days, using approximately the same amount and duration you would during normal use.
If redness, itching, swelling, rash, or another reaction develops, stop using the product.
Testing cannot guarantee that you will never become sensitized to an ingredient in the future, but it can sometimes identify a problem before you spread a product over a larger area.
Do not interpret burning, redness, or painful tingling as evidence that an essential oil is “detoxifying” your skin.
Those are reasons to stop.
🌿 Essential Oils Can Cause Contact Dermatitis
Contact dermatitis occurs when something touching the skin either irritates it or triggers an allergic reaction.
Fragrance is a common cause.
Essential oils contain naturally occurring fragrance chemicals, which means “natural” does not mean “allergy-proof.”
Someone may also develop a fragrance allergy after previously using the same or similar ingredient without an obvious problem.
If fragranced skin-care products repeatedly cause redness, itching, swelling, or rash, stop using them and consider switching to fragrance-free products.
A dermatologist can help identify a suspected contact allergy, sometimes through formal patch testing.
🫙 Store Essential-Oil Skin-Care Blends Properly
Store homemade oil blends in tightly closed containers away from prolonged direct sunlight and excessive heat.
A pump or dropper bottle can reduce repeated finger contact with the product.
Every homemade blend should also have a label containing the product name, carrier oil, essential oils, approximate concentration, and date prepared.
Both carrier oils and essential oils change with time.
If a product develops an unusual smell, obvious deterioration, or the carrier becomes rancid, replace it rather than continuing to apply it to your skin.
🌑 Why Oxidation Matters
Essential oils are not chemically frozen at the moment they are bottled.
Exposure to oxygen, heat, and light gradually changes some of their aromatic compounds.
Oxidation can change an oil’s fragrance and may increase the likelihood of unwanted skin reactions with some essential oils and constituents.
Keep bottles tightly closed instead of leaving caps loose during blending sessions.
Buying realistic quantities is also better than purchasing enormous bottles that remain partly empty and repeatedly exposed to air for years.
☀️ Be Careful When Adding Citrus Oils
You may eventually want to customize a body oil with bergamot, lemon, lime, grapefruit, or another citrus essential oil.
Check the exact product before doing so.
Some expressed citrus peel oils contain compounds that can produce phototoxic reactions when sufficient concentrations remain on the skin and are followed by ultraviolet exposure.
Extraction method matters.
Distilled citrus oils generally contain dramatically lower amounts of the compounds responsible for phototoxicity, while products such as bergamot FCF have been processed to remove the primary phototoxic furanocoumarins.
Not every citrus oil is phototoxic, and the safe concentration differs among those that are.
For a leave-on product, never assume all citrus oils can be substituted drop-for-drop.
🌿 Can You Add Tea Tree Oil for Acne?
Tea tree oil is one of the better-known essential oils used in products for blemish-prone skin.
There is some research suggesting that certain topical tea tree preparations may help acne, but the evidence is limited and does not establish homemade tea tree formulas as replacements for established acne treatments.
Tea tree oil can also cause redness, dryness, burning, irritation, or allergic reactions, particularly when the oil has oxidized.
Do not dab undiluted tea tree oil directly onto blemishes simply because the ingredient is natural.
If acne is persistent, painful, cystic, leaving scars or dark marks, or significantly affecting your quality of life, a dermatologist can offer treatments supported by much stronger evidence.
🚫 Don’t Apply Undiluted Essential Oils to Your Face
There is rarely a good reason to place concentrated essential oil straight from the bottle onto facial skin.
Undiluted use greatly increases exposure and can increase the likelihood of irritation, burning, redness, or allergic reactions.
Dilution allows you to use a very small amount of fragrance while reducing unnecessary concentrated exposure.
This applies even to oils with gentle reputations such as lavender.
“Natural” and “safe undiluted” are not synonyms.
👀 Keep Essential Oils Away From the Eyes
Keep facial oils away from the eyelids, directly beneath the eyes, inside the nose or ears, mouth, and other sensitive tissues.
Wash your hands after handling concentrated essential oils.
If you wear contact lenses, make especially sure your hands are clean before touching your eyes.
A low percentage in a facial oil does not mean the product belongs near the eye itself.
🧼 Don’t Use These Recipes on Broken or Infected Skin
These recipes are intended for ordinary cosmetic use on healthy, intact adult skin.
Do not use them as homemade treatments for open wounds, burns, infected cuts, severe rashes, weeping eczema, impetigo, fungal infections, or significant active dermatitis.
Skin conditions have different causes.
A formula tolerated comfortably on healthy skin may be inappropriate on skin whose barrier has already been damaged.
Medical skin problems deserve appropriate diagnosis and treatment.
🌱 What About Sensitive Skin?
If your skin is highly reactive, the best essential-oil skin-care recipe may contain no essential oil at all.
Try plain jojoba or another fragrance-free product you already tolerate.
There is no requirement for facial or body care to contain fragrance.
If you have eczema or a history of fragrance allergy, dermatologists commonly recommend products labeled fragrance-free.
This is different from “unscented,” which can still contain fragrance ingredients used to mask another odor.
You can still enjoy essential oils in other ways if your skin prefers fragrance-free topical products.
👶 Essential-Oil Skin Care and Children
The recipes in this article are intended for adults.
Do not automatically scale down an adult essential-oil recipe for a baby or young child.
Children have smaller bodies and different exposure considerations, and individual essential oils may have age-specific precautions.
For ordinary childhood dry skin, uncomplicated fragrance-free moisturizers are generally much simpler than creating a scented DIY formula.
If a child has eczema, recurrent rashes, persistent itching, infection, or another skin concern, discuss it with an appropriate pediatric healthcare professional.
🤰 Essential-Oil Skin Care During Pregnancy
Pregnancy and breastfeeding deserve additional consideration because safety data are limited for many essential oils and routes of exposure.
The exact oil, concentration, amount applied, application area, frequency, medications, medical history, and individual circumstances can all matter.
If you plan to use concentrated essential oils regularly in leave-on skin-care products during pregnancy or breastfeeding, obtain individualized guidance.
Plain carrier oil or a fragrance-free moisturizer remains an easy alternative.
🐕 Keep Human Skin-Care Blends Away From Pets
These recipes are formulated for human adult skin.
Do not use them as pet paw balms, coat conditioners, flea preparations, wound products, or treatments for an animal’s skin.
Also avoid allowing pets to lick freshly applied essential-oil products from your hands, legs, or other areas.
Store bottles where animals cannot knock them over, spill them, or ingest their contents.
For pet skin concerns, use veterinary guidance.
💦 Don’t Turn These Oils Into a Water-Based Serum
It may be tempting to take the facial oil and add rosewater, aloe juice, hydrosol, or ordinary water to make it feel lighter.
Do not do that casually.
Oil and water do not remain uniformly blended by themselves.
More importantly, adding water changes the microbiological safety of the product.
A properly formulated water-based cosmetic may require an emulsifier or solubilizer, a suitable broad-spectrum preservative, appropriate pH, accurate ingredient percentages, good manufacturing practices, and appropriate packaging.
If you want a true lotion or serum, either purchase a professionally formulated product or learn proper cosmetic formulation before improvising.
🧴 What About Adding Essential Oils to Store-Bought Moisturizer?
Be cautious about modifying finished commercial cosmetics too.
A moisturizer is formulated with specific ingredient percentages and has been designed to function as a complete product.
Adding concentrated essential oil can alter fragrance concentration, skin tolerance, texture, and potentially the overall formulation.
If you want a customized lotion, purchase an unscented cosmetic base specifically designed to accept additional fragrance or essential oils and follow the manufacturer’s instructions.
Otherwise, use the original product as formulated.
🌞 Essential Oils Don’t Replace Sunscreen
No essential-oil skin-care recipe should replace sunscreen.
If your goal is to reduce premature skin aging, discoloration, and ultraviolet damage, sun protection matters far more than finding an essential oil marketed as “anti-aging.”
Essential oils can add fragrance.
They are not sunscreen.
Use appropriate sun-protection practices as part of your regular routine.
🌿 Build a Simple Essential-Oil Skin-Care Collection
You do not need twenty essential oils to experiment with aromatic skin care.
Lavender provides a versatile floral-herbal fragrance that can work in very small amounts when tolerated.
Cedarwood gives body products a dry woody character and combines particularly well with lavender.
Frankincense creates a warm resinous perfume note.
Geranium provides a stronger floral-green character that can dramatically change a formula even in small amounts.
Pair those with one or two carrier oils whose textures you enjoy.
That is more than enough for a surprising number of combinations.
📝 Keep Notes About What Your Skin Likes
Skin care is extremely individual.
When you make a blend, record the carrier oil, essential oils, approximate concentration, application area, date, skin response, and whether you actually liked the fragrance.
You may discover that your facial skin prefers plain jojoba while your arms tolerate scented oil without difficulty.
You may love lavender but find geranium overwhelming.
You may prefer grapeseed on your body and jojoba on your face.
Or you may discover that your skin simply performs better when fragrance is absent.
Every one of those outcomes is useful information.
🌸 The Three Essential-Oil Skin-Care Recipes at a Glance
1. Gentle Lavender Jojoba Facial Oil
- 1 ounce / 30 mL jojoba oil
- 3 drops lavender essential oil
- Approximate concentration: 0.3%
Best for fragrance-tolerant adult skin when you want an especially lightly scented facial oil.
2. Lavender Cedarwood Body Oil
- 1 ounce / 30 mL carrier oil
- 3 drops lavender essential oil
- 3 drops cedarwood essential oil
- Approximate concentration: 0.7%
Best for after-shower body care with a soft floral-woody fragrance.
3. Frankincense, Geranium & Lavender Hand and Body Oil
- 1 ounce / 30 mL carrier oil
- 2 drops frankincense essential oil
- 2 drops geranium essential oil
- 2 drops lavender essential oil
- Approximate concentration: 0.7%
Best for hands, arms, and body when you want a slightly more perfume-like fragrance.
⚠️ Essential-Oil Skin-Care Safety Checklist
Before using a homemade leave-on skin-care blend:
- Keep facial concentrations especially conservative.
- Dilute essential oils before routine topical use.
- Remember that individual oil limits override general dilution charts.
- Test new leave-on products before widespread use.
- Stop using a product if redness, burning, itching, rash, or swelling develops.
- Remember that natural fragrance can cause contact dermatitis.
- Avoid essential oils on broken, infected, or significantly inflamed skin.
- Keep essential oils away from the eyes and sensitive tissues.
- Check phototoxicity before adding citrus oils to leave-on products.
- Do not automatically adapt adult recipes for children.
- Use additional caution during pregnancy and breastfeeding.
- Keep human essential-oil products away from pets.
- Do not add water unless you understand cosmetic formulation and preservation.
Most importantly, do not confuse more essential oil with better skin care.
🌿 Essential-Oil Skin Care Recipes: The Bottom Line
Essential-oil skin care can be wonderfully simple.
You do not need a complicated fifteen-ingredient serum.
Start with a carrier oil your skin already tolerates.
If you enjoy fragrance and your skin handles it comfortably, add a very small amount of an appropriate essential oil.
Lavender and jojoba create a gently scented facial oil. Lavender and cedarwood make a beautiful body blend. Frankincense, geranium, and lavender can turn an ordinary hand and body oil into something that feels almost like a natural perfume.
Keep expectations realistic.
Essential oils do not need to erase wrinkles, cure acne, eliminate scars, or treat eczema to deserve a place in an aromatic skin-care routine.
In these recipes, the carrier oil does most of the skin-conditioning work.
The essential oils provide the fragrance.
And if your skin prefers no fragrance at all, listen to it.
Good skin care is not about using the largest number of ingredients or the highest possible essential-oil concentration.
It is about finding products your skin tolerates, using them thoughtfully and consistently, and recognizing when a skin problem needs more than a homemade recipe.
🔗 Related Articles
- Essential Oil Dilution Guide: Safe Ratios, Charts & How to Dilute Essential Oils
- Essential Oil Dilution Chart: Drops, Percentages & Carrier Oil Measurements
- Carrier Oils Guide: How to Choose & Use Carrier Oils With Essential Oils
- The Complete Beginner’s Guide to Lavender Oil and Carrier Oils
- Lavender Essential Oil: Benefits, Uses, Safety & Aromatherapy Guide
- How to Blend Essential Oils: A Beginner’s Guide to Creating Balanced Blends
- Aromatherapy Safety Guide: How to Use Essential Oils Safely
- Essential Oils: Complete Beginner’s Guide
📚 Sources & Further Reading
- National Center for Complementary and Integrative Health — Lavender
- National Center for Complementary and Integrative Health — Tea Tree Oil
- NCCIH — Skin Conditions and Complementary Health Approaches
- American Academy of Dermatology — How to Test Skin-Care Products
- American Academy of Dermatology — Contact Dermatitis Signs and Symptoms
- Tisserand Institute — Dilution for Essential Oils
- Tisserand Institute — Essential Oil Dilution Chart
- Tisserand Institute — Irritation and Allergic Reactions
- Tisserand Institute — Phototoxicity: Essential Oils, Sun and Safety
