Science
Mechanism of Action
This ingredient functions as a humectant, drawing moisture from the environment into the skin to enhance hydration and mitigate trans-epidermal water loss. It forms a breathable, non-occlusive film that supports the skin's natural barrier. For hair, Phytantriol significantly boosts the deposition of active compounds like Panthenol and keratin amino acids into the hair shaft, improving water retention, strengthening damaged strands, and preventing mechanical damage and color fading.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
Phytantriol has a high maximum safe concentration of 3% and is generally not considered an ingredient prone to 'dusting' or overuse beyond its functional benefits, particularly given its specialized role in formulation.
The Formula
Formulation
Stability
Phytantriol is soluble in various oils (natural, synthetic, mineral), ethanol, and propylene glycol; it is insoluble in water but dispersible in glycerol and dimethicone. It has an oil-like character and may crystallize below 5-10°C, a reversible effect by heating to 30-40°C.
Synergies
- Panthenol (enhanced penetration)
- Ethyl-Panthenol (enhanced penetration)
- Keratin amino acids (enhanced deposition/penetration)
Safety
Safety Profile
The CIR Expert Panel reaffirmed Phytantriol's safety as a cosmetic ingredient at concentrations up to 3% in 2022/2023, noting no significant irritation or sensitization. Both the FDA and the European Union consider it safe for use, with the EU listing it as a humectant without restrictions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While Phytantriol offers significant benefits for hydration, barrier support, and ingredient penetration, its high comedogenicity rating of 'high' makes it a questionable choice for facial skincare, particularly for individuals prone to breakouts, despite its otherwise broad skin compatibility and low irritancy.
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References
Sources