Develop brightening, even-tone and age-support skincare with a lipid-soluble vitamin C ester that fits oil phases, anhydrous systems and premium emulsions. This clear colorless-to-pale-yellow liquid gives formulators a practical alternative to strongly acidic, water-based L-ascorbic-acid architecture.
- Oil-soluble liquid for facial oils, serums, emulsions, creams and lip-care concepts
- Supports formulas designed for brighter, more even-looking skin
- Useful in age-support products targeting the appearance of fine lines, smoothness and firmness
- Paid development packs from 2 g to 250 g, with commercial quantities handled by inquiry
Product Specifications
|
INCI |
Tetrahexyldecyl Ascorbate |
|
Ingredient family |
Oil-soluble ester derivative of vitamin C |
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Commercial form |
Liquid |
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Appearance |
Clear colorless to pale yellow |
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Solubility |
Oil-soluble; water-insoluble |
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Assay |
98% |
Key Benefits
Brighter, More Even-Looking Tone: Tetrahexyldecyl Ascorbate is commonly selected for brightening serums, creams and oils designed to improve the look of dullness and uneven tone. Human research on formulated vitamin C systems supports this development direction. [R7–R8].Smoother-Looking Skin and Fine-Line Support: Use it in age-support formulas intended to improve the appearance of fine lines, surface smoothness and visual texture. Clinical studies have reported appearance improvements in multi-ingredient systems containing THD Ascorbate[R7–R8].
Firmer- and More Elastic-Looking Skin: THD Ascorbate can support product briefs focused on firmer- and more elastic-looking skin.
Antioxidant-Oriented Age-Support Formulation: Its oil-phase compatibility makes it useful in antioxidant-oriented skincare systems. Laboratory evidence also shows that THD Ascorbate can degrade under oxidative stress, so effective formulas should combine active selection with protective formulation, processing and packaging choices [R6].
Why Formulators Choose THD Ascorbate
- Oil-phase flexibility: build facial oils, anhydrous serums and emulsions without trying to dissolve the active directly in water.
- Less dependence on very low aqueous pH: water-containing systems can be screened in a milder pH window than classic L-ascorbic-acid formulas [R3, R5].
- Premium sensory options: the liquid can be distributed through compatible emollients and oil phases for elegant oil-serum or emulsion concepts.
- Clear trial-to-scale path: begin with a measured bench batch, compare active levels and packaging, then move to pilot or bulk purchasing after performance is verified.
Typical Applications
- Anhydrous facial oils and oil serums
- Emulsion serums, lotions, creams and moisturizers
- Eye-area and lip-care formulas developed within applicable safety limits
- Brightening and even-tone skincare concepts
- Age-support formulas focused on fine lines, smoothness, firmness and elasticity
- After-sun and daily environmental-stress skincare concepts
Quick Formulation Guide
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Development field |
Practical starting guidance |
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Bench-screening level |
Begin around 2–3% [R3–R5]. |
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Phase / solubility |
Add through a compatible oil phase or oil-soluble premix; do not add directly to the water phase [R4–R5]. |
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Finished-formula pH |
For water-containing systems, screen about pH 3.5–6.0 [R3, R5]. pH is not a useful control for a purely anhydrous oil. |
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Processing |
Minimize unnecessary prolonged heating and follow the selected grade's current technical data. |
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Stability design |
Limit light, heat and repeated air exposure [R6]. |
Why Source From Us
- Start with samples scale to bulk orders – one supplier from trial to production: Validate with lab samples, then scale to commercial volumes – same quality, same team. No re-qualification, no project delays.
- Formulation support that actually helps – not just a data sheet: We give you hands-on guidance on solubility, temperature, pH, and compatibility. A real formulation partner, not a catalog.
- Reliable supply chain – consistent quality, on-time delivery, batch after batch: Own manufacturing facilities plus long-term partnerships with audited upstream producers ensure batch-to-batch consistency. Full documentation with every shipment. No "sample passes, bulk fails"
- Export-ready documentation – compliance, customs, cleared：Complete technical documentation packages – COA, MSDS, TDS, stability data – batch-specific and regulatory-ready. We handle the paperwork so your compliance and procurement teams can focus on formulation
Recommended Ingredient Pairings
|
Recommended ingredient |
Why it pairs well |
Product concept |
Compatibility note |
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Adds an oil-phase antioxidant partner and supports lipid-rich age-care concepts. |
Anhydrous antioxidant facial oil or emulsion serum. |
Screen oxidation, color and odor; do not assume automatic stabilization at every ratio. |
|
|
Provides another oil-soluble active for antioxidant- and age-support product concepts. |
Premium oil serum or nourishing night cream. |
Manage combined oil-phase loading, color and solubility; confirm active recovery. |
|
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Adds water-phase support for brighter-looking tone and barrier-focused product briefs. |
Dual-phase brightening emulsion or serum cream. |
Place niacinamide in the water phase; validate pH, color, odor and long-term stability. |
|
|
Ceramide Complex |
Broadens the concept toward lipid replenishment and barrier-support skincare. |
Barrier-support moisturizer with vitamin C derivative. |
Use the ceramide supplier's phase and carrier instructions; validate emulsion structure and sensory. |
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Adds a complementary water-phase ingredient for even-tone formulation concepts. |
Targeted brightening emulsion serum. |
Control water-phase pH and heat exposure; confirm both actives against their grade-specific requirements. |
Scientific Evidence Snapshot
THD Ascorbate is an oil-soluble vitamin C ester used as an antioxidant and skin-conditioning ingredient in cosmetics [R2]. A small double-blind half-face study evaluated an anhydrous system containing both 10% ascorbic acid and 7% THD Ascorbate and reported improvement in photoaged-skin appearance after 12 weeks[R7].
More recent studies have evaluated THD Ascorbate with acetyl zingerone. Laboratory work found that oxidative stress can degrade THD Ascorbate and that acetyl zingerone improved stability in the tested system [R6]. A 12-week open-label serum study reported improvements in pigmentation, fine lines, smoothness, firmness and elasticity [R8].
Research & References
- [R2] Cosmetic Ingredient Review — Safety Assessment of Ethers and Esters of Ascorbic Acid
- [R3] Hallstar — VitaSynol C / Tetrahexyldecyl Ascorbate
- [R4] MakingCosmetics — Vitamin C (Tetrahexyldecyl Ascorbate) 1014
- [R5] Lotioncrafter — Tetrahexyldecyl Ascorbate Formulation Guide
- [R6] Swindell et al. (2021) — THDC Oxidative Stability and Acetyl Zingerone
- [R7] Fitzpatrick & Rostan (2002) — Double-Blind Half-Face Vitamin C Study
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