AYA Multipurpose Aloe Vera Gel Face, Hair & Body (300ML)

DESCRIPTION

What It Does: Attracts and retains moisture in the sc, improves skin barrier function at low concentrations, provides gentle keratolytic softening, and acts as a co-solvent for water-soluble actives.

Why It's Used: The reference humectant — lowest cost, best safety profile, universal formulation compatibility, and present naturally in the sc via lipase-mediated glycerolipid hydrolysis makes glycerin the industry standard against which all humectants are benchmarked.

How It Works: Three hydroxyl groups form 6 h-bonds with water molecules per glycerol unit — the highest oh-group density per carbon of any commercial humectant. glycerin also down-regulates epidermal serine proteases that overactivate in dry sc, improving desquamation and barrier integrity.

Typically Found In: All cosmetics,universal

TECHNICAL DETAILS

Primary Category: Functional ingredient – humectant

Secondary Functions: Tewl reduction,skin plumping

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1%–40%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Yes

Source Notes: Synthetic or naturally derived. excellent aqueous solubility.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Non-irritating; suitable for all skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. ewg score: 1.

Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Epidermal lipases hydrolyse sc glycerophospholipids during cornification, releasing glycerol that contributes to the natural nmf — topical glycerin directly supplements this endogenous sc humectant pool.

Last Verified: Cosing database,glycerin universal humectant review

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Preserves acidic formulations against yeast and mold contamination.

Why It's Used: Natural-derived (from benzoic acid found in cranberries, cinnamon) preservative for acidic ph formulations where it provides excellent antimicrobial activity.

How It Works: Undissociated benzoic acid (active form, pka 4.2) penetrates microbial cell membranes and disrupts electron transport chain and ph homeostasis. at ph>5, mostly ionized (sodium salt) and inactive – requires acidic formulation ph for efficacy.

Typically Found In: Acidic serums,toners,low-ph formulations

TECHNICAL DETAILS

Primary Category: Functional ingredient – benzoate preservative

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.1%–0.5%

SOURCING & ETHICS

Vegan Status: Yes – from plant sources (cranberry, cinnamon) or synthetic

Halal Status: Yes

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Well-tolerated by most skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Eu max 0.5%. gras food additive. ewg score: 3 (benzene formation concern with vitamin c at >80°c – normal use temperatures do not form benzene).

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Sodium benzoate's strict ph dependency (90% inactive at ph>5.5) makes its preservative activity dramatically sensitive to formulation ph. a serum formulated at ph 4.0 is fully preserved by benzoate; the same formula adjusted to ph 5.5 has <10% of the preservative activity. this ph dependency must be considered in any benzoate-preserved formulation.

Last Verified: Cosing database,siegert & frieling benzoate review,cir safety assessment

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides the most effective natural nmf humectant as the largest component of the skin's natural moisturising factor.

Why It's Used: The primary nmf humectant — sodium pca is the dominant single component of natural moisturising factor, providing the most effective humectant hydration of any nmf component.

How It Works: Pyrrolidone carboxylic acid (pca) forms from glutamine at the skin surface by enzymatic cyclisation during cornification. sodium salt provides strong hygroscopic water binding from both ionic and pyrrolidone ring interactions. 12% of total nmf by dry weight. declines with age and in dry skin conditions.

Typically Found In: Premium moisturisers,nmf-based products,anti-aging hydration

TECHNICAL DETAILS

Primary Category: Functional ingredient – humectant

Secondary Functions: Tewl reduction,skin plumping

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%–5%

SOURCING & ETHICS

Vegan Status: Yes – synthetic or from glutamine fermentation

Halal Status: Yes

Source Notes: Synthetic or naturally derived. excellent aqueous solubility.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Non-irritating; suitable for all skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. ewg score: 1.

Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Sodium pca's dominance in nmf (12% by dry weight vs next largest ha contribution of ~0.1%) makes it quantitatively the most important single nmf humectant. its decline in aged and dry skin (measurable by stratum corneum tape-strip amino acid analysis) provides both a biomarker of skin hydration state and a therapeutic target — replenishing what declining nmf production fails to provide.

Last Verified: Cosing database,rawlings & matts nmf review,cir safety assessment

Primary Sources: 2026-03-12