Peppermint essential oil

Product Information

CosmySupplies supplies 100% pure peppermint essential oil (INCI: Mentha Piperita Oil, CAS 8006-90-4, Botanical: Mentha x piperita L.) in India. Steam-distilled from flowering parts, India origin, food grade Cat 3, CoE 282 compliant. Density 0.891 to 0.918 g/cm3, optical rotation minus 32.0 to minus 10.0 degrees. COA available on request. Used in scalp and hair care, skin care, body massage, oral care, and aromatic diffuser blends. Shipped from Bengaluru across India. Available at cosmysupplies.com.

INCI: Mentha Piperita Oil | Botanical: Mentha x piperita L. | Origin: India | Grade: 100% pure and natural, food grade Cat 3 | Form: Liquid

Main components: L-menthol (30 to 55%), menthone (14 to 32%), menthyl acetate, menthofuran, isomenthone, cineole 

Functions: Fragrance Component | Analgesic (cooling) | Antimicrobial | Scalp Stimulant | Flavouring Agent | Aromatic

Used In: Scalp Serum | Shampoo | Hair Oil | Cooling Massage Oil | Lip Balm | Body Wash | Toothpaste | Mouthwash | Foot Cream | Diffuser Blend | Bath Product

CIR Reviewed | 100% Pure | Steam Distilled | India Origin | Food Grade | CoE 282 | No Dilution Required on INCI Label

Benefits

The signature cooling sensation 

The unmistakable cooling, tingling sensation of peppermint essential oil is delivered by L-menthol, its primary component, which activates TRPM8 cold receptors in the skin and mucosa — the same receptors triggered by low temperature. This is not a numbing effect; it is a physiological receptor activation that creates a real, measurable cooling sensation without actually changing skin temperature. In a scalp serum, cooling massage oil, or foot cream, this is the functional mechanism behind the product's sensory claim. Menthol's TRPM8 activity is well-established in primary pharmacology literature.

Scalp stimulant 

At concentrations of 0.5 to 1% in a scalp serum or hair oil, peppermint essential oil creates a cooling, vasodilatory effect on the scalp that stimulates local blood circulation. A 2016 study published in Toxicological Research (Oh et al.) found that 3% peppermint oil in a topical formulation showed significant hair growth promotion in a mouse model, comparable to 3% minoxidil, attributed to upregulation of IGF-1 and stimulation of dermal papilla activity. The CSW page cites this as a formulation reference study. This is a QUALIFIED claim — an in vivo animal study, not a confirmed human clinical trial. Formulation at 0.5 to 1% in a scalp product supports a scalp stimulating, cooling, and invigorating sensory claim at the cosmetic level without requiring a hair growth claim on the label.

Antimicrobial character for scalp care and formulation hygiene

Menthol and other peppermint oil components including menthone and cineole have documented antimicrobial activity against common scalp organisms including Malassezia species (dandruff-associated yeast) and gram-positive bacteria. At use concentrations in a shampoo or scalp serum (0.5 to 2%), peppermint essential oil contributes antimicrobial character that supports anti-dandruff and scalp hygiene product positioning at the cosmetic claim level.

Flavouring and freshness in oral care

Peppermint essential oil is one of the most widely used flavouring agents in toothpaste, mouthwash, and oral care globally. Its FEMA 2848 and FDA 182.20 status confirm it is a GRAS (generally recognised as safe) flavouring agent. In tooth powder and toothpaste at 0.5 to 2%, it provides the characteristic mint freshness, mild antibacterial activity, and analgesic numbing effect that consumers associate with oral hygiene products. For Indian indie brands building oral care SKUs, peppermint essential oil is the single most impactful functional and sensory ingredient.

Fragrance and aromatherapy applications

Peppermint essential oil is a top-note fragrance with high volatility and penetrating, fresh, minty character. In diffuser blends, it creates an alert, focused, cooling sensory environment. In cosmetic products as a fragrance component, it provides instant sensory recognition. In bath products and body washes, the combination of fragrance and cooling sensation from menthol creates a spa-quality sensory experience at minimal use concentration.

CIR Expert Panel reviewed safe in cosmetics

The CIR Expert Panel reviewed Mentha Piperita (Peppermint) Oil in 2001 and re-reviewed in 2017, concluding it is safe in cosmetics in the present practices of use and concentration when formulated to be non-sensitising. The re-review determined that use at maximum 3% in rinse-off formulations and maximum 0.2% in leave-on formulations, combined with the restriction of pulegone to maximum 1% in the ingredient, addresses all safety concerns. Formulators must stay within these concentration limits in their finished product formulations.

Applications and Usage Rates

Scalp serum and hair oil

Use at 0.5 to 1% of the total formula weight. Always dilute in a carrier oil or water-based serum base before applying to the scalp. Never apply undiluted. At 0.5 to 1%, peppermint essential oil provides a strong cooling, stimulating scalp sensation in a carrier oil blend or a water-based serum. Popular carrier pairings: Rosehip Seed Oil (scalp nourishing), Jojoba Oil (non-comedogenic, scalp-compatible), or Sweet Almond Oil (light emollient base).

Shampoo and conditioner

Use at 0.5 to 1% in a shampoo or conditioner base. Peppermint essential oil is a rinse-off application, so the CIR maximum of 3% applies — but start at 0.5% and adjust based on the cooling intensity in the finished formula. Add at the cool-down stage (below 40 degrees Celsius) after all surfactants and conditioning agents are incorporated, after pH adjustment, before adding the preservative. High temperature degrades volatile essential oil components.

Cooling massage oil

Use at 1 to 2% in a carrier oil blend. Peppermint essential oil at 1 to 2% in a blend of Sweet Almond Oil, Coconut Fractionate, or Jojoba Oil creates a cooling, muscle-relaxing massage oil. This is a leave-on application — the CIR leave-on maximum of 0.2% should be observed unless the product will be washed off within a short period. For a strong cooling massage oil positioned as a rinse-off product (shower before or after), 1 to 2% is acceptable within the rinse-off limit.

Lip balm and lip care

Use at 0.5 to 1% in a lip balm base. Peppermint essential oil provides a cooling, plumping sensation on the lips from menthol-induced TRPM8 activation. For a lip product, the formulator must verify their specific IFRA certificate for lip product categories . The reference NHR IFRA certificate shows Category 1 limit at 3.60%.

Toothpaste and tooth powder

Use at 0.5 to 2% in a tooth powder or toothpaste base. FDA 182.20 and FEMA 2848 confirm peppermint oil as GRAS for food and flavouring use. At 1%, it provides strong mint flavour and cooling effect. At 2%, it is very potent. Start at 0.5% and adjust. Ensure the finished product is not irritating to oral tissues at the chosen concentration.

Body wash and bath products

Use at 0.5 to 2% in a body wash, shower gel, or bath oil. Rinse-off application — CIR maximum 3% applies. At these concentrations, peppermint essential oil provides a cooling, energising sensory experience in the shower or bath. For a bath salt or bath bomb, use at 0.5 to 1% as the oil is diluted significantly in bath water.

Foot cream and foot care

Use at 0.5 to 2% in a foot cream or foot balm base. The cooling and mild analgesic character of menthol makes peppermint essential oil the natural choice for tired, aching, or swollen feet. Foot products are leave-on applications — observe the CIR leave-on maximum of 0.2% in strict compliance. For foot massage products positioned as wash-off, the rinse-off limit of 3% applies.

Aromatic and diffuser use

No dilution limits apply for diffuser use — peppermint essential oil can be used neat at 3 to 10 drops per 100mL water in an ultrasonic diffuser. For room spray, dilute at 1 to 3% in ethanol. For an inhalation steam blend, add 2 to 3 drops to a bowl of hot water and inhale with a towel over the head for 5 to 10 minutes.

How to Use

The dilution rule 

Peppermint essential oil is a concentrated active with a high menthol content. Undiluted application causes skin and mucous membrane irritation, and is reported to cause a burning or numbing sensation that can damage sensitive skin. Always dilute to the recommended use level in a carrier oil, emulsion, or surfactant base before any skin application. The 1% general safety guideline for face products and 2% for body products (General Cosmetic Safety guidance) is a useful starting benchmark before IFRA CoC limits are applied.

Addition temperature

Peppermint essential oil contains volatile components that evaporate at elevated temperatures. Always add at the cool-down stage of formulation, after the main batch has cooled to below 40 degrees Celsius. Adding to a hot phase above 40 to 50 degrees Celsius results in partial loss of the characteristic menthol top notes and a weaker sensory impact in the finished product.

Stability

Peppermint essential oil is stable under correct storage conditions but oxidises on prolonged exposure to air, light, and heat. Oxidised peppermint oil can cause skin sensitisation. Always store sealed in original packaging, protected from light, at room temperature. Check for off-notes or colour change before use if the oil has been opened for more than 6 months. Shelf life is 3 years from manufacture date in unopened original packaging.

Patch testing

Peppermint essential oil contains menthol, which can cause contact sensitisation in some individuals — particularly in products with high menthol concentration applied to mucous membranes or broken skin. Always patch test a sample of the finished formula on the inner arm before full application. For products targeting sensitive skin, consider reducing the peppermint oil concentration or switching to a diluted menthol crystal solution.

Do not use near infants and children under 2 years

European Medicines Agency and European Pharmacopoeia guidance states that menthol-containing preparations must not be applied to or near the face of infants and children under 2 years old. The menthol content of peppermint essential oil can cause respiratory distress in very young children. Do not include peppermint essential oil in any product formulated for or likely to be used on children under 2 years of age.

Storage

Store in original packaging at room temperature, protected from light, air, and moisture. Flash point 71 degrees Celsius — keep away from open flame and heat sources. Shelf life: 3 years from manufacture date in unopened original packaging.

Claims You Can Make

For your label and marketing:

100% Pure | Steam Distilled | India Origin | Natural | Cooling | Scalp Stimulating | Invigorating | Minty Fresh | Refreshing | Aromatic

For your formulator brief:

INCI: Mentha Piperita Oil  | CAS 8006-90-4  | CIR Expert Panel reviewed — safe in cosmetics when formulated to be non-sensitising, max 3% rinse-off, max 0.2% leave-on  | Food Grade Cat 3 / GRAS (Herbarom TDS: FDA 182.20, FEMA 2848) | CoE 282 compliant  | TRPM8 cold receptor activation — cooling sensation mechanism confirmed in pharmacology literature | Antimicrobial character (menthol, menthone, cineole components) | India origin, Mentha x piperita L. flowering parts | Optical rotation confirmed levorotatory (L-menthol dominant, genuine peppermint)

For dilution ratios, carrier oil pairing, and formulation guidance, contact the CosmySupplies team.

WhatsApp |   Email: info@cosmysupplies.com

Technical Information

Pairs Well With

Rosehip Seed Oil

Carrier oil for scalp serum and hair oil formulations. Dilute peppermint essential oil at 0.5 to 1% in a Rosehip Seed Oil base for a nourishing, regenerative, cooling scalp treatment. Rosehip's high linoleic acid content complements the stimulating action of peppermint by supporting the scalp barrier.

Jojoba Oil

Closest to skin's natural sebum in composition. The preferred carrier oil for a cooling scalp serum for oily or combination scalp types. Dilute peppermint at 0.5 to 1% in Jojoba for a light, non-greasy scalp treatment with maximum sensory impact.

Tea Tree Essential Oil

Antimicrobial synergy partner for scalp and hair care products. Peppermint at 0.5% plus Tea Tree at 0.5% in a shampoo or scalp serum base creates a comprehensive anti-dandruff and scalp purifying blend. Both are reviewed safe at cosmetic concentrations. Ensure total essential oil load stays within CIR and IFRA limits for the product category.

Eucalyptus Essential Oil

Respiratory and aromatic synergy partner. Peppermint and Eucalyptus together in a diffuser blend or steam inhalation product create the classic decongestant aromatic profile. In a chest rub formulation, the combination at 1 to 2% total in a carrier oil base is a standard folk remedy positioning — note this is a cosmetic claim territory, not a drug claim.

Castor Oil

Traditional carrier for scalp and hair growth oil formulations in India. Castor's high ricinoleic acid content supports scalp circulation alongside peppermint's cooling stimulant effect. Use in a blend with Jojoba or Coconut Oil to reduce Castor's thickness. Peppermint at 0.5 to 1% in a Castor-Jojoba blend is one of the most popular DIY scalp oil formulations in India.

Spearmint Essential Oil

Complementary mint for a layered fresh, minty fragrance in personal care and oral care products. Spearmint (Mentha spicata) has a lower menthol content and a sweeter, greener minty note. Blending peppermint and spearmint in a 2:1 ratio creates a rounded mint profile in shampoos, body washes, and toothpaste that is less intense than peppermint alone.

Important Information

Peppermint Essential Oil must not be applied undiluted to skin. Always dilute to the recommended concentration in a carrier oil or formulation base before skin application. Undiluted application causes skin and mucous membrane irritation.

Do not apply peppermint essential oil or any menthol-containing product to or near the face of infants and children under 2 years of age. Menthol can cause respiratory distress in very young children (European Medicines Agency and European Pharmacopoeia guidance).

CIR Expert Panel maximum use concentrations: up to 3% in rinse-off formulations, up to 0.2% in leave-on formulations. Pulegone content in the ingredient must not exceed 1% (CIR 2001, re-reviewed 2017). Request your batch GC report to confirm pulegone content.

Always obtain an IFRA Certificate of Conformity (51st Amendment, 2023) before using peppermint essential oil in any cosmetic formulation. IFRA limits vary by product category — lip products, leave-on body products, and baby care products have different maximum use levels. Formulators are responsible for calculating the total peppermint oil concentration in their finished product and verifying compliance with IFRA standards for the relevant category.

Peppermint essential oil has a flash point of 71 degrees Celsius. Store away from open flame, heat sources, and direct sunlight. Keep in sealed original packaging.

COA is available on request. No download link. Contact us via WhatsApp or email.