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Here's a concise overview of 1,2-Pentanediol :
1,2-Pentanediol (C₅H₁₂O₂) is a plant-derived, colorless liquid diol used primarily in cosmetics and skincare. It acts as:
Humectant: Binds water to hydrate skin (e.g., in serums, creams).
Solvent: Dissolves oils and active ingredients (vitamins, preservatives).
Preservative Booster: Enhances efficacy of antimicrobials (like phenoxyethanol) against bacteria/fungi.
Texture Modifier: Improves spreadability without stickiness.
Safety: Low irritation risk (suitable for sensitive skin), biodegradable, and approved globally (EU, US). Commonly replaces glycerin for lighter formulations.
1,2-Pentanediol (C₅H₁₂O₂) is a colorless, viscous organic compound belonging to the class of diols (molecules with two hydroxyl groups). Here's a concise overview of its properties and uses:
Chemical Structure: HO−CH₂−CH(OH)−CH₂−CH₂−CH₃
(Hydroxyl groups on adjacent carbon atoms).
Solubility: Miscible with water, alcohols, and many organic solvents.
Function: Combines solvent, humectant (moisture-retaining), and mild preservative-boosting properties.
Safety: Generally well-tolerated; low skin irritation potential (used in sensitive skin products).
Cosmetics & Personal Care (⭐️ Most Common Use):
Humectant/Moisturizer: Binds water in creams, lotions, serums (e.g., replaces glycerin for lighter texture).
Solvent: Dissolves active ingredients (e.g., vitamins, preservatives).
Preservative Enhancer: Boosts efficacy of other preservatives (e.g., phenoxyethanol) against microbes.
Viscosity Modifier: Adjusts product thickness.
Found in: Toners, cleansers, sunscreens, makeup.
Pharmaceuticals:
Carrier for topical drugs; stabilizer in ointments.
Industrial:
Intermediate in chemical synthesis; solvent for inks, coatings.
Skin Safety: Low irritation/corrosion potential (OECD tests); suitable for sensitive skin.
Preservative Role: Not a standalone preservative but reduces required doses of stronger preservatives.
Biodegradability: Readily biodegradable (OECD 301D).
Regulatory Status: Approved by major agencies (EU CosIng, FDA GRAS indirect uses).
Replaces controversial ingredients (e.g., parabens, formaldehyde-releasers).
Dual functionality (humectant + solvent) simplifies formulations.
Improves texture without stickiness.
Example: In a hyaluronic acid serum, it prevents drying while helping dissolve preservatives uniformly.
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