Schwarzkopf Fresh Light Bleach Mist for Black Hair 150ml

DESCRIPTION

What It Does: Opens hair cuticle for dye penetration and activates hydrogen peroxide at alkaline ph.

Why It's Used: The hair colour alkaliser – ammonium hydroxide's rapid cuticle-swelling and h2o2 activation makes it the most effective and fastest permanent hair colour alkaliser.

How It Works: Nh3 (volatile base) alkalises hair colour to ph 9-11. at alkaline ph, hair keratin proteins become ionised and water-swollen, allowing dye molecule penetration through swollen cuticle into cortex. high ph activates h2o2 for melanin bleaching. volatile nh3 evaporates during processing.

Typically Found In: Permanent hair colour formulations

TECHNICAL DETAILS

Primary Category: Hair colourant – alkalising agent

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%–6%

SOURCING & ETHICS

Vegan Status: Yes – 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 annex iii restricted: max 3.5% (in hair colour) or max 6% (other hair products). scalp irritant at high concentrations. strong odour. sensitiser to some.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Ammonium hydroxide's volatile nh3 provides a unique self-limiting alkalinity system: as the hair colour processes, nh3 evaporates from the alkaline emulsion, gradually reducing ph back toward neutral. this self-limiting ph reduction prevents excessive prolonged alkaline damage to hair protein structure – an elegant chemical safety mechanism built into the volatile base system that would not occur with non-volatile alkalisers.

Last Verified: Cosing database,eu annex iii,cir safety assessment

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Opens hair cuticle for dye penetration and activates hydrogen peroxide at alkaline ph.

Why It's Used: The hair colour alkaliser – ammonium hydroxide's rapid cuticle-swelling and h2o2 activation makes it the most effective and fastest permanent hair colour alkaliser.

How It Works: Nh3 (volatile base) alkalises hair colour to ph 9-11. at alkaline ph, hair keratin proteins become ionised and water-swollen, allowing dye molecule penetration through swollen cuticle into cortex. high ph activates h2o2 for melanin bleaching. volatile nh3 evaporates during processing.

Typically Found In: Permanent hair colour formulations

TECHNICAL DETAILS

Primary Category: Hair colourant – alkalising agent

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%–6%

SOURCING & ETHICS

Vegan Status: Yes – 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 annex iii restricted: max 3.5% (in hair colour) or max 6% (other hair products). scalp irritant at high concentrations. strong odour. sensitiser to some.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Ammonium hydroxide's volatile nh3 provides a unique self-limiting alkalinity system: as the hair colour processes, nh3 evaporates from the alkaline emulsion, gradually reducing ph back toward neutral. this self-limiting ph reduction prevents excessive prolonged alkaline damage to hair protein structure – an elegant chemical safety mechanism built into the volatile base system that would not occur with non-volatile alkalisers.

Last Verified: Cosing database,eu annex iii,cir safety assessment

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: Provides the oxidation power necessary for permanent hair colour development and hair lightening.

Why It's Used: The essential permanent hair colour oxidant – hydrogen peroxide provides both lightening (melanin bleaching) and dye chromophore formation in a single oxidant for complete permanent colouring.

How It Works: H2o2 at alkaline ph generates ooh⁻ (perhydroxyl anion) as the actual bleaching species. ooh⁻ oxidises melanin eumelanin in fenton-type reaction. simultaneously oxidises hair dye primary intermediates (ppd→quinonediimine) for coupling.

Typically Found In: Permanent hair colour developer,hair bleaching

TECHNICAL DETAILS

Primary Category: Hair colourant – oxidant

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1.5%–12% (in developer formulations)

SOURCING & ETHICS

Vegan Status: Yes – 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 cosmetics regulation annex iii: max 12% in hair care products. regulated as professional-use-only above 6%. causes hair and scalp damage at high concentrations or extended exposure.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Hydrogen peroxide's hair bleaching action at alkaline ph (the developer system ph 9-11) is mediated by the perhydroxyl anion (ooh⁻) rather than h2o2 itself. the ooh⁻ concentration is governed by the ionisation equilibrium h2o2 ⇌ h⁺ + ooh⁻ (pka 11.65), meaning alkaline developer ph dramatically increases ooh⁻ concentration for efficient melanin oxidation – the chemical basis for alkali developer volumes (10v, 20v, 30v, 40v) providing different bleaching rates.

Last Verified: Cosing database,eu annex iii,cir safety assessment

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides the oxidation power necessary for permanent hair colour development and hair lightening.

Why It's Used: The essential permanent hair colour oxidant – hydrogen peroxide provides both lightening (melanin bleaching) and dye chromophore formation in a single oxidant for complete permanent colouring.

How It Works: H2o2 at alkaline ph generates ooh⁻ (perhydroxyl anion) as the actual bleaching species. ooh⁻ oxidises melanin eumelanin in fenton-type reaction. simultaneously oxidises hair dye primary intermediates (ppd→quinonediimine) for coupling.

Typically Found In: Permanent hair colour developer,hair bleaching

TECHNICAL DETAILS

Primary Category: Hair colourant – oxidant

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1.5%–12% (in developer formulations)

SOURCING & ETHICS

Vegan Status: Yes – 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 cosmetics regulation annex iii: max 12% in hair care products. regulated as professional-use-only above 6%. causes hair and scalp damage at high concentrations or extended exposure.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Hydrogen peroxide's hair bleaching action at alkaline ph (the developer system ph 9-11) is mediated by the perhydroxyl anion (ooh⁻) rather than h2o2 itself. the ooh⁻ concentration is governed by the ionisation equilibrium h2o2 ⇌ h⁺ + ooh⁻ (pka 11.65), meaning alkaline developer ph dramatically increases ooh⁻ concentration for efficient melanin oxidation – the chemical basis for alkali developer volumes (10v, 20v, 30v, 40v) providing different bleaching rates.

Last Verified: Cosing database,eu annex iii,cir safety assessment

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: Lotions,creams,serums,masks

TECHNICAL DETAILS

Primary Category: Minerals

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: Yes

Halal Status: Yes

Source Notes: Mineral-derived ingredient; no biological origin.

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: Plant extracts,peptides,vitamins

Avoid Combining With: Strong chelating agents (reduce mineral availability)

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; ingredient-specific safety and efficacy literature

Primary Sources: 2025-01-15

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