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CORYLUS AVELLANA SEED OIL.

Valuable CAS 84012-21-5 / 185630-72-2 / FRAGRANCE

Commonly known as Hazelnut Oil, this nutrient-dense botanical lipid is prized for its high concentration of essential fatty acids and Vitamin E. It serves as a dual-action ingredient that reinforces the skin's lipid barrier while providing a unique 'dry oil' finish suitable for various skin types.

Emollient Skin-Conditioning Agent Antioxidant Astringent

Science

This oil utilizes a high concentration of oleic and linoleic acids to penetrate the epidermal layers, replenishing the hydrolipidic film and preventing transepidermal water loss (TEWL). Its natural catechin and tannin content provides mild astringent properties that help balance sebum production and refine pore appearance, while its alpha-tocopherol (Vitamin E) content neutralizes oxidative stress.


Research

Medium confidence
Effective range 1–100%
Optimal

5%


Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

As a carrier oil often used as a base or significant active lipid, it is rarely 'dusted' in high-quality formulations. However, in mass-market products, it may be included at sub-1% levels purely for label claims, where its barrier-repair benefits are significantly diminished.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly susceptible to oxidation; must be stored in UV-protective amber glass and kept in cool environments to maintain its fatty acid integrity.

Synergies

  • Vitamin C
  • Vitamin E
  • Squalane
  • Rosehip Oil

Safety

CIR Status
Safe as used
Max tested
100%
Pregnancy
Safe
Sensitization risk Low

Generally regarded as non-irritating; however, individuals with known tree nut allergies should exercise caution and perform a patch test.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An exceptionally versatile lipid that offers barrier protection and sebum regulation with a sophisticated, non-greasy skin feel.


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