At-Home Facialist Peel

DESCRIPTION

What It Does: Delivers characteristic cosmetic function — skin conditioning, protection, preservation, or active biological benefit — at recommended use concentration.

Why It's Used: Selected for its functional contribution and formulation compatibility — supported by cosmetic science literature and regulatory safety assessment.

How It Works: Works through the mechanism of its molecular class — physicochemical interaction with the formulation or biological interaction with skin proteins, lipids, or receptors as documented in peer-reviewed literature.

Typically Found In: Skin care formulations

TECHNICAL DETAILS

Primary Category: Active ingredient – cosmetic active

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%–10%

SOURCING & ETHICS

Vegan Status: Conditional

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: Good safety profile at recommended concentrations. ewg score: 1–2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Aloe barbadensis leaf juice delivers documented functional benefit with an established safety profile within the cosmetic regulatory framework (cosing eu, cir usa).

Last Verified: Cosing database,aloe barbadensis leaf juice technical literature

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides antioxidant protection, soothing anti-inflammatory effects, and skin-conditioning benefits through plant-derived polyphenols and phytochemicals.

Why It's Used: Plant extracts concentrate bioactive phytochemicals evolved for environmental protection — uv, microbial, and oxidative stressors — that translate to skin benefits.

How It Works: Polyphenols (flavonoids, phenolic acids) inhibit nf-κb-mediated inflammatory signaling, scavenge reactive oxygen species through electron donation, and chelate pro-oxidant metal ions to reduce oxidative skin damage.

Typically Found In: Serums,toners,moisturizers,masks,essences

TECHNICAL DETAILS

Primary Category: Botanical extracts

Secondary Functions: Antioxidant,anti-inflammatory

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.1–10%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Yes

Source Notes: Plant-derived extract; no animal components.

SKIN COMPATIBILITY

Irritancy Rating: 1899-12-31 00:00:00 -0800

Sensitivity Concerns: Low sensitization potential at recommended use concentrations.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.

Works Well With: Niacinamide,hyaluronic acid,vitamin c,ceramides

Avoid Combining With: Strong oxidizing agents

SCIENTIFIC NOTE

Plant secondary metabolites (flavonoids, terpenes, phenolic acids) are biosynthesized as defense compounds against uv, herbivores, and pathogens. their anti-inflammatory activity typically derives from competitive inhibition of cox-2 and 5-lox enzymes (ic50 1–50 µm), while antioxidant activity involves single electron transfer (set) and hydrogen atom transfer (hat) mechanisms with structure-dependent rate constants.

Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; phytochemical and ethnobotanical literature

Primary Sources: 2025-01-15

DESCRIPTION

What It Does: Smooths and softens skin by filling intercorneocyte spaces, reducing friction, and providing a pleasant aesthetic skin feel in formulations.

Why It's Used: Synthetic esters provide tailored aesthetic properties — spreadability, skin feel, volatility, refractive index — that natural oils alone cannot consistently deliver.

How It Works: The ester molecule fills microscopic surface irregularities between corneocytes, reducing coefficient of friction, reflecting light uniformly, and providing a lubrication layer that protects the skin surface.

Typically Found In: Moisturizers,sunscreens,color cosmetics,body lotions,lip products

TECHNICAL DETAILS

Primary Category: Synthetic emollients

Secondary Functions: Emollient

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1–20%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Yes

Source Notes: Synthetically produced ester emollient; no animal components.

SKIN COMPATIBILITY

Irritancy Rating: 1

Comedogenicity Rating: 1

Sensitivity Concerns: Low sensitization potential at recommended use concentrations.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.

Works Well With: Silicones,uv filters,other emollients

Avoid Combining With: Strongly alkaline conditions (risk of saponification of ester-type emollients)

SCIENTIFIC NOTE

The spreading coefficient of an emollient is governed by its surface tension, viscosity, and polarity. esters with branched alkyl chains (e.g., isopropyl, isostearyl) spread rapidly and leave a non-tacky film; linear long-chain esters provide more substantive moisturization. hlb value determines the preferred formulation system (w/o vs o/w emulsions).

Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature

Primary Sources: 2025-01-15

DESCRIPTION

What It Does: Provides maximum aha efficacy from the smallest most penetrating alpha-hydroxy acid.

Why It's Used: The most potent aha — glycolic acid's smallest molecular size provides the deepest penetration and highest efficacy of any alpha-hydroxy acid for exfoliation and anti-aging.

How It Works: Smallest aha (mw 76) provides deepest stratum corneum penetration. disrupts corneodesmosomes reducing cohesion. stimulates fibroblast collagen i and iii synthesis. efficacy is ph-dependent — free acid fraction determines activity.

Typically Found In: Chemical peels,body lotions,anti-aging serums,exfoliating toners

TECHNICAL DETAILS

Primary Category: Active ingredient – primary aha

Secondary Functions: Brightening,collagen stimulation

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1%–10% cosmetic; higher professional

SOURCING & ETHICS

Vegan Status: Yes – synthetic or fermentation-derived

Halal Status: Yes

Source Notes: Fermentation-derived or synthetic. ph must be ≤4.0 for aha activity.

SKIN COMPATIBILITY

Irritancy Rating: 2/5 – low to moderate

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Photosensitizing – mandatory spf use. start at low frequency.

Safe for Sensitive Skin: Use with caution – spf required

SAFETY & COMPATIBILITY

Safety Profile: Eu cosmetics: max 10% leave-on, ph ≥3.5, mandatory sun protection advisory. professional peel concentrations regulated separately.

Works Well With: Niacinamide,ceramides,hyaluronic acid,spf

Avoid Combining With: Retinol in same step; multiple exfoliants simultaneously

SCIENTIFIC NOTE

Glycolic acid's ph-dependent efficacy is critical: at ph 3.0 ~100% is in the free acid (membrane-permeable) form; at ph 3.5 ~70%; at ph 4.0 ~50%. the eu ph ≥3.5 requirement reduces free acid proportion, lowering efficacy but also reducing irritation — why professional peel concentrations at lower ph are far more active than equivalent cosmetic concentrations.

Last Verified: Cosing database,eu aha guidelines,cir safety assessment

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Delivers targeted skin-conditioning or bioactive benefits through a specific mechanism of action suited to the formulation's intended purpose.

Why It's Used: Specialty actives address specific skin concerns through targeted molecular mechanisms, providing efficacy beyond what base formulation ingredients alone can achieve.

How It Works: The bioactive compound interacts with specific molecular targets in skin cells or the extracellular matrix — enzymes, receptors, structural proteins, or signaling molecules — triggering beneficial biological responses.

Typically Found In: Serums,treatments,moisturizers,specialty products

TECHNICAL DETAILS

Primary Category: Specialty actives

Secondary Functions: Skin-conditioning,anti-aging

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.01–5%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Conditional

Source Notes: Specialty active ingredient; check individual sourcing for vegan status.

SKIN COMPATIBILITY

Irritancy Rating: 1

Comedogenicity Rating: 0

Sensitivity Concerns: Low sensitization potential at recommended use concentrations.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.

Works Well With: Niacinamide,hyaluronic acid,vitamin c,peptides

Avoid Combining With: Incompatible with oxidizing agents; check ph stability

SCIENTIFIC NOTE

Specialty actives typically work through enzyme inhibition (e.g., tyrosinase inhibition for brightening, mmp inhibition for anti-aging), receptor activation (e.g., retinoid receptors, ppar-γ for barrier genes), or transcription factor modulation (e.g., nrf2 for antioxidant gene upregulation). structure-activity relationships determine potency and selectivity.

Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature

Primary Sources: 2025-01-15

DESCRIPTION

What It Does: Provides humectant and solvent functionality from sustainable corn-based fermentation.

Why It's Used: Bio-based propylene glycol alternative from renewable corn — propanediol provides equivalent functionality to propylene glycol with sustainable renewable feedstock and superior skin feel.

How It Works: Two oh groups provide humectant water binding. excellent solvent for fragrances, actives, and preservatives. mild antimicrobial from diol structure for preservative system boosting. renew corn fermentation origin (dupont zemea process). better skin feel than propylene glycol — less sticky.

Typically Found In: Virtually all cosmetic categories as pg alternative

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%–20%

SOURCING & ETHICS

Vegan Status: Yes – from corn sugar 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

Propanediol's dupont tate & lyle bio products 'zemea' process ferments corn sugar to 1,3-propanediol using engineered e. coli — one of the first commercially viable bio-fermentation routes to a cosmetic diol previously made only from petroleum. the renewable route produces chemically identical 1,3-propanediol while reducing carbon footprint by approximately 40% vs petrochemical synthesis.

Last Verified: Cosing database,dupont tate & lyle zemea technical data,cir safety assessment

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Salicylic acid exfoliates the skin surface and inside pores, dissolves the 'glue' holding dead skin cells together, reduces sebum production, and combats acne-causing bacteria.

Why It's Used: Its oil solubility makes it uniquely effective at penetrating pores and dissolving sebum plugs – a function that water-soluble ahas cannot perform. it is the preferred exfoliant for oily, acne-prone, and congested skin.

How It Works: Salicylic acid disrupts desmosomal bonds between corneocytes, promoting exfoliation. its oil solubility allows it to penetrate the sebaceous follicle, dissolving sebum and dead cells. it also has anti-inflammatory properties by inhibiting prostaglandin synthesis.

Typically Found In: Cleansers,toners,serums,spot treatments,masks,chemical peels,anti-dandruff shampoos,acne treatments

TECHNICAL DETAILS

Primary Category: Active ingredient – beta hydroxy acid (bha)

Secondary Functions: Anti-acne,anti-dandruff,keratolytic

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%–2% (otc acne treatment in us); up to 30% in professional chemical peels

SOURCING & ETHICS

Vegan Status: Yes – synthetic or willow bark derived

Halal Status: Yes

Source Notes: Naturally occurring in willow bark (salix alba) and wintergreen oil. commercially produced synthetically via kolbe-schmitt reaction for cosmetic use.

SKIN COMPATIBILITY

Irritancy Rating: 3/5 – moderate; can cause dryness, peeling, and irritation, especially at higher concentrations

Comedogenicity Rating: 0/5 – non-comedogenic; actually anti-comedogenic

Sensitivity Concerns: Can cause irritation, dryness, and sun sensitivity. avoid contact with eyes. not recommended during pregnancy at high concentrations. can be drying – follow with moisturizer.

Safe for Sensitive Skin: Use with caution – start with lower concentrations and frequency; may not be suitable for reactive or rosacea-prone skin

SAFETY & COMPATIBILITY

Safety Profile: Safe at otc concentrations (0.5–2%). regulated as a drug in some countries (us: fda category i acne treatment). avoid in pregnancy at high concentrations.

Works Well With: Niacinamide,zinc,tea tree oil,benzoyl peroxide (at different times),hyaluronic acid (to counteract dryness)

Avoid Combining With: High concentrations of retinol (cumulative irritation),multiple exfoliating acids simultaneously,benzoyl peroxide in same step (can increase irritation)

SCIENTIFIC NOTE

Salicylic acid is a member of the salicylate family and shares structural similarity with aspirin. its anti-inflammatory mechanism mirrors aspirin's cox inhibition pathway, making it uniquely effective for inflammatory acne.

Last Verified: Cosing database,cir safety assessment,us fda acne monograph,journal of the american academy of dermatology

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Delivers targeted skin-conditioning or bioactive benefits through a specific mechanism of action suited to the formulation's intended purpose.

Why It's Used: Specialty actives address specific skin concerns through targeted molecular mechanisms, providing efficacy beyond what base formulation ingredients alone can achieve.

How It Works: The bioactive compound interacts with specific molecular targets in skin cells or the extracellular matrix — enzymes, receptors, structural proteins, or signaling molecules — triggering beneficial biological responses.

Typically Found In: Serums,treatments,moisturizers,specialty products

TECHNICAL DETAILS

Primary Category: Specialty actives

Secondary Functions: Skin-conditioning,anti-aging

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.01–5%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Yes

Source Notes: Specialty active ingredient; check individual sourcing for vegan status.

SKIN COMPATIBILITY

Irritancy Rating: 1

Comedogenicity Rating: 0

Sensitivity Concerns: Low sensitization potential at recommended use concentrations.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.

Works Well With: Niacinamide,hyaluronic acid,vitamin c,peptides

Avoid Combining With: Incompatible with oxidizing agents; check ph stability

SCIENTIFIC NOTE

Specialty actives typically work through enzyme inhibition (e.g., tyrosinase inhibition for brightening, mmp inhibition for anti-aging), receptor activation (e.g., retinoid receptors, ppar-γ for barrier genes), or transcription factor modulation (e.g., nrf2 for antioxidant gene upregulation). structure-activity relationships determine potency and selectivity.

Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature

Primary Sources: 2025-01-15

DESCRIPTION

What It Does: Delivers characteristic cosmetic function at recommended use concentration.

Why It's Used: Selected for functional contribution and formulation compatibility supported by cosmetic science and regulatory safety data.

How It Works: Works through the mechanism of its molecular class as documented in peer-reviewed cosmetic literature.

Typically Found In: Skin care formulations

TECHNICAL DETAILS

Primary Category: Active ingredient – cosmetic active

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%–10%

SOURCING & ETHICS

Vegan Status: Conditional

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: Good safety profile at recommended concentrations. ewg score: 1–2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Sodium hydroxide has an established safety profile within the cosmetic regulatory framework at standard use concentrations.

Last Verified: Cosing database,sodium hydroxide technical literature

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides pseudoplastic thickening and emulsion/suspension stabilization across broad ph and salt conditions.

Why It's Used: The most versatile cosmetic thickener – pseudoplastic behavior (shear-thinning) provides ideal pump dispensing while maintaining in-use viscosity, stable across ph 2-12 and in high-salt formulations.

How It Works: Helix-coil conformational transitions provide pseudoplastic (shear-thinning) rheology. electrostatic repulsion between negatively charged chains provides thickening without cross-linking. stable across ph 2-12 and at nacl concentrations up to saturation.

Typically Found In: Virtually all aqueous cosmetic products requiring viscosity control

TECHNICAL DETAILS

Primary Category: Functional ingredient – microbial polysaccharide thickener

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: 0.1%–2%

SOURCING & ETHICS

Vegan Status: Yes – microbial fermentation (xanthomonas campestris)

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

Xanthan gum's pseudoplastic behavior arises from helix alignment under shear (reducing viscosity) that recovers to random coil entanglement at rest (restoring viscosity). the 100-1000× viscosity reduction during pumping vs at rest makes xanthan the ideal pump-dispensing thickener – providing both easy dispensing and in-use viscosity that neither purely viscous nor elastic thickeners can achieve simultaneously.

Last Verified: Cosing database,cir safety assessment,fda gras

Primary Sources: 2026-03-12