La Sana - Seaweed Hair Essence Moist 25ml

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

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

Last Verified: Cosing database,alcohol technical literature

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides the complete fragrance profile contributing to product sensory experience and consumer appeal.

Why It's Used: Fragrance is a major consumer purchase driver — up to 70% of consumers make purchasing decisions partially based on product scent.

How It Works: Fragrance blends interact with olfactory receptors providing the sensory profile — complex mixtures activate multiple receptor types for rich, multidimensional scent experiences.

Typically Found In: All fragrance products

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: Standard use levels

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

Ifra guidelines set usage limits for fragrance ingredients based on skin sensitisation and phototoxicity assessment for each application category.

Last Verified: Eu regulation 1223/2009 annex iii,ifra standards,fragrance allergen declaration requirements

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Glycerin pulls water from the environment and deeper skin layers into the outer skin layer (epidermis), boosting moisture levels and keeping skin soft, smooth, and plump.

Why It's Used: It is used in virtually every moisturizer, serum, and cleanser because it is highly effective at hydrating skin, is well-tolerated by all skin types, and enhances the texture and spreadability of formulations.

How It Works: As a humectant, glycerin forms hydrogen bonds with water molecules, trapping them in the skin. it also reinforces the skin barrier by integrating into lipid structures between skin cells.

Typically Found In: Moisturizers,serums,cleansers,toners,sheet masks,sunscreens,body lotions,shampoos,conditioners

TECHNICAL DETAILS

Primary Category: Humectant

Secondary Functions: Skin barrier support,emollient,solvent

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1%–30% (typical: 3–10%)

SOURCING & ETHICS

Vegan Status: Yes – plant-derived (coconut, soy, palm) or synthetic

Halal Status: Yes – when plant-derived or synthetic; verify source with supplier

Source Notes: Derived from plant oils via hydrolysis or saponification; synthetic versions also available. palm-derived glycerin carries sustainability concerns.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low; non-irritating at all standard concentrations

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Extremely rare allergic reactions; generally safe for all skin types including sensitive and baby skin

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Widely recognized as safe. ewg hazard score: 1. no significant concerns for irritation, sensitization, or toxicity at typical concentrations (up to 50%).

Works Well With: Hyaluronic acid,ceramides,niacinamide,panthenol,urea,peptides,retinol,ahas/bhas

Avoid Combining With: No known incompatibilities at standard concentrations

SCIENTIFIC NOTE

Glycerin is an endogenous skin component found naturally in the stratum corneum. aquaporin-3 channels in keratinocytes facilitate glycerin transport, making it integral to natural skin hydration pathways.

Last Verified: Cosing database,cir safety assessment,ewg skin deep,inci decoder

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Deposits conditioning protein film on skin and hair through electrostatic and h-bonding surface adsorption, provides amino acid humectancy, reduces friction and improves combability in hair, and temporarily smooths skin surface texture.

Why It's Used: Hydrolysed proteins provide dual-weight-dependent function: high-mw fractions (>5000 da) adsorb on surfaces for film-forming conditioning; low-mw fractions (<500 da) penetrate sc for deeper conditioning and metabolic amino acid delivery.

How It Works: Enzymatic hydrolysis yields a distribution of peptide fragments 100–10,000 da. positively charged (basic) amino acid residues (lysine, arginine) in the peptide fragments electrostatically bind the negatively charged hair cuticle surface; hydrophobic residues provide lipophilic anchoring. the resulting protein film reduces tewl and surface friction while providing amino acid nutrients.

Typically Found In: Hair conditioners,skin serums,protein formulas

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: 0.1%–5%

SOURCING & ETHICS

Vegan Status: Conditional

Halal Status: Conditional

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

Optimal hydrolysis degree for hair conditioning uses mw 1,000–5,000 da fragments — large enough for stable cuticle adsorption but small enough to penetrate damaged cuticle cracks and access internal cortex protein repair sites.

Last Verified: Cosing database,hydrolyzed collagen protein conditioning review

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Deposits conditioning protein film on skin and hair through electrostatic and h-bonding surface adsorption, provides amino acid humectancy, reduces friction and improves combability in hair, and temporarily smooths skin surface texture.

Why It's Used: Hydrolysed proteins provide dual-weight-dependent function: high-mw fractions (>5000 da) adsorb on surfaces for film-forming conditioning; low-mw fractions (<500 da) penetrate sc for deeper conditioning and metabolic amino acid delivery.

How It Works: Enzymatic hydrolysis yields a distribution of peptide fragments 100–10,000 da. positively charged (basic) amino acid residues (lysine, arginine) in the peptide fragments electrostatically bind the negatively charged hair cuticle surface; hydrophobic residues provide lipophilic anchoring. the resulting protein film reduces tewl and surface friction while providing amino acid nutrients.

Typically Found In: Hair conditioners,skin serums,protein formulas

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: 0.1%–5%

SOURCING & ETHICS

Vegan Status: Conditional

Halal Status: Conditional

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

Optimal hydrolysis degree for hair conditioning uses mw 1,000–5,000 da fragments — large enough for stable cuticle adsorption but small enough to penetrate damaged cuticle cracks and access internal cortex protein repair sites.

Last Verified: Cosing database,hydrolyzed collagen protein conditioning review

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Deposits conditioning protein film on skin and hair through electrostatic and h-bonding surface adsorption, provides amino acid humectancy, reduces friction and improves combability in hair, and temporarily smooths skin surface texture.

Why It's Used: Hydrolysed proteins provide dual-weight-dependent function: high-mw fractions (>5000 da) adsorb on surfaces for film-forming conditioning; low-mw fractions (<500 da) penetrate sc for deeper conditioning and metabolic amino acid delivery.

How It Works: Enzymatic hydrolysis yields a distribution of peptide fragments 100–10,000 da. positively charged (basic) amino acid residues (lysine, arginine) in the peptide fragments electrostatically bind the negatively charged hair cuticle surface; hydrophobic residues provide lipophilic anchoring. the resulting protein film reduces tewl and surface friction while providing amino acid nutrients.

Typically Found In: Hair conditioners,skin serums,protein formulas

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: 0.1%–5%

SOURCING & ETHICS

Vegan Status: Conditional

Halal Status: Conditional

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

Optimal hydrolysis degree for hair conditioning uses mw 1,000–5,000 da fragments — large enough for stable cuticle adsorption but small enough to penetrate damaged cuticle cracks and access internal cortex protein repair sites.

Last Verified: Cosing database,hydrolyzed silk protein conditioning review

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Deposits conditioning protein film on skin and hair through electrostatic and h-bonding surface adsorption, provides amino acid humectancy, reduces friction and improves combability in hair, and temporarily smooths skin surface texture.

Why It's Used: Hydrolysed proteins provide dual-weight-dependent function: high-mw fractions (>5000 da) adsorb on surfaces for film-forming conditioning; low-mw fractions (<500 da) penetrate sc for deeper conditioning and metabolic amino acid delivery.

How It Works: Enzymatic hydrolysis yields a distribution of peptide fragments 100–10,000 da. positively charged (basic) amino acid residues (lysine, arginine) in the peptide fragments electrostatically bind the negatively charged hair cuticle surface; hydrophobic residues provide lipophilic anchoring. the resulting protein film reduces tewl and surface friction while providing amino acid nutrients.

Typically Found In: Hair conditioners,skin serums,protein formulas

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: 0.1%–5%

SOURCING & ETHICS

Vegan Status: Conditional

Halal Status: Conditional

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

Optimal hydrolysis degree for hair conditioning uses mw 1,000–5,000 da fragments — large enough for stable cuticle adsorption but small enough to penetrate damaged cuticle cracks and access internal cortex protein repair sites.

Last Verified: Cosing database,hydrolyzed silk protein conditioning review

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides the universal solvent and vehicle for water-soluble actives and the continuous phase of all o/w emulsions.

Why It's Used: The most essential cosmetic ingredient — aqua (water) is listed first on virtually all water-containing cosmetic inci labels as the highest-concentration ingredient, serving as the foundation of the global cosmetics industry.

How It Works: Acts as solvent for all water-soluble ingredients (glycols, amino acids, water-soluble actives). forms the continuous external phase of o/w emulsions (lotions, creams, serums). provides aqueous environment for enzymatic and chemical reactions between actives. ph adjustment medium.

Typically Found In: Virtually all cosmetic products — the most universal cosmetic ingredient globally

TECHNICAL DETAILS

Primary Category: Functional ingredient – water

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: Varies widely — up to 95% in some toners and serums

SOURCING & ETHICS

Vegan Status: Yes – water (deionised/purified)

Halal Status: Yes

Source Notes: Cosmetic-grade water is purified (deionised, distilled, or ro filtered) to prevent mineral content interference with formulation stability. european pharmacopoeial water (aqua purificata ph. eur.) is the quality standard for pharmaceutical and high-end cosmetic formulations.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – non-irritant

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

Water's position as the first inci ingredient on most cosmetic labels reflects the regulatory requirement to list ingredients in descending concentration order — meaning water is the most abundant ingredient in the majority of cosmetic products. the fundamental role of water as the universal cosmetic solvent and vehicle makes it simultaneously the most important cosmetic ingredient and the one that requires the most sophisticated formulation chemistry to control — every emulsifier, thickener, preservative, and ph adjuster exists primarily to manage water's interaction with other ingredients in formulation.

Last Verified: Cosing database,eu cosmetics regulation 1223/2009 inci requirements,ph. eur. aqua purificata monograph

Primary Sources: 2026-03-12