Formula: 32740 Level: beginner Shelf life: min. 6 months Optimal pH: -- Phase Ingredients Dosage % Total 30 g A Cherry Oil 50 15 g A Tricaprylin 15 4.5 g A Evening Primrose Oil 5 1.5 g A Jojoba Oil...
Vitamin C THDA
€6.24
(VAT included)
€5.24
(without VAT)
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Description
Vitamin C THDA – Oil-soluble and stable form of Vitamin C
Tetrahexyldecyl Ascorbate (THDA) is an oil-soluble ascorbic acid derivative developed to overcome the limitations of the traditional form of Vitamin C, particularly its sensitivity to oxidation and instability in formulations. Being soluble in oils, it penetrates the skin's lipid barrier more easily and maintains its efficacy for a longer period than pure ascorbic acid.
It is a potent antioxidant active widely used in formulations for mature skin or skin exposed to oxidative stress factors, where it contributes to a more even and luminous complexion. Unlike traditional ascorbic acid, it does not impart a yellowish tint to the formula and remains stable for a longer time in the finished product.
Ingredients (INCI): Tetrahexyldecyl Ascorbate
Technical Characteristics
- Appearance: Clear, colorless to pale yellow oil, faint characteristic odor
- Solubility: Soluble in oils and fats; insoluble in water
- Quality: Cosmetic-grade Vitamin C THDA, intended for use as an active ingredient in formulation
- Recommended Dosage: 1 - 10%
Scientific Studies and Documentation
According to the manufacturer, Tetrahexyldecyl Ascorbate exhibits good skin penetration capability due to its lipophilic nature and acts as an active free radical scavenger, helping to limit lipid peroxidation induced by oxidative stress. The same source indicates an inhibitory action on tyrosinase activity, an enzyme involved in the melanin synthesis process, a mechanism relevant to promoting evenness in hyperpigmentation-prone areas.
Combining Vitamin C with Vitamin E is documented in specialized literature as having a synergistic antioxidant effect superior to using either ingredient alone, which is why these two actives frequently appear together in skin care formulations.
Properties and Benefits
- Potent antioxidant with a free radical neutralizing effect
- Contributes to a more even and luminous complexion
- Useful for addressing the appearance of dark spots or uneven skin tone
- Significantly better formulation stability than traditional ascorbic acid
- Does not impart a yellowish tint to the formula, unlike pure ascorbic acid
- Good skin penetration capability due to its lipophilic nature
Applications
- Facial serums and creams with antioxidant and brightening benefits
- Body lotions and creams
- Pre- and post-sun care products
- Makeup products with skin-care benefits
- Lip care products
Formulation Guide
- Add to the oil phase of the formula under stirring until fully homogenized
- Compatible with and highly recommended in combination with Vitamin E for a stronger synergistic antioxidant effect
- Do not apply directly or undiluted to the skin, use exclusively incorporated into a cosmetic formulation
- Low concentrations (1 - 3%): suitable for a moderate antioxidant effect in daily care formulations
- Medium-high concentrations (5 - 10%): used in concentrated serums with a visible effect on the complexion's appearance
- Optimal pH range for the finished product: 3.5 - 6.0
Usage Safety and Storage
- Profile: Safe ingredient with good skin tolerance
- Precautions: External cosmetic use; do not ingest; do not apply directly, undiluted, onto the skin
- Storage: Store in a closed container in a cool, dry place, protected from light
Details
Code
D-1637
Categories
Suitable for
cosmetics, sun protection
Key benefits
anti-aging, anti-inflammatory, anti-wrinkle, antioxidant, protector
Specific indications
acne, pimples, pigmentation spots, wrinkles, fine lines
Skin care
Face creams, Facial Oils, Serums, Treatments
Skin type
Acne prone, All types, Dry, Mature
Body care
Body butters, Creams Emulsions, Hand creams, Ointments
Solubility
in oil
Storage
in a cool dry place away from direct sunlight
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for blemished skin is very good. Leaves skin brighter and smoother, with a radiant and revitalized appearance
Hello, I would like to order a 90 gram vial for my own use, this means that it would be consumed over a long period of time. How long can you keep a bottle open and under what conditions. Thank you.
I made the 10% serum with olive squalan I am very satisfied as it helps to reduce fine lines and wrinkles, leaving the skin firm, smooth and radiant....
I couldn't wait to use it. I find it easier to use than the other Vitamin C versions.
I think it is the best stable vitamin C.Unfortunately I am not satisfied with the grammage variants.It is not exactly cheap and there is no medium grammage variant.For this I give 4 stars.
improves the appearance of ageing skin brightens the skin, helps to remedy hyperpigmentation and age spots inhibitory effect on melanogenesis anti-inflammatory, anti-acne, clarifies the skin antioxidant, scavenges free radicals helps prevent cell damage promotes collagen synthesis excellent penetration into the skin