Fixderma Kojic Acid + Arbutin Skarfix-Plus Cream For Hyperpigmentation And Melasma Treatment

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

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

Last Verified: Cosing database,arbutin technical literature

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides potent copper-chelating tyrosinase inhibition for effective hyperpigmentation treatment.

Why It's Used: One of the most effective brightening agents — kojic acid's copper chelation directly blocks the tyrosinase active site providing stronger brightening than most naturally-derived alternatives.

How It Works: Chelates copper in the tyrosinase active site via the 3-hydroxy-4-pyranone chelating group (ic50 ~5μg/ml). without copper cofactor, tyrosinase cannot oxidise tyrosine to dopa or dopa to dopaquinone. inhibits both hydroxylation steps in eumelanin synthesis pathway.

Typically Found In: Brightening serums,hyperpigmentation treatments,anti-spot products

TECHNICAL DETAILS

Primary Category: Active ingredient – fungal brightening agent

Secondary Functions: Melanin inhibition,hyperpigmentation reduction

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%–2%

SOURCING & ETHICS

Vegan Status: Yes – from aspergillus oryzae or acetobacter fermentation

Halal Status: Yes

Source Notes: Synthetic or plant-derived.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Non-irritating; well-tolerated.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Eu annex iii regulated: max 1% in face products. sensitiser potential — patch test for sensitive skin. photosensitive in formulation — requires stabilisation.

Works Well With: Niacinamide,vitamin c,alpha-arbutin,tranexamic acid,spf

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Kojic acid's copper chelation mechanism provides an unusually direct enzyme inhibition: rather than competing with tyrosine substrate (competitive inhibitor) or altering enzyme conformation (allosteric inhibitor), kojic acid simply removes the copper cofactor that is essential for tyrosinase catalytic activity — a metal-chelation mechanism that provides near-complete enzyme inhibition regardless of substrate concentration.

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

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Provides the most widely used uvb chemical filtration with light, elegant aesthetics.

Why It's Used: The global uvb standard — octyl methoxycinnamate's combination of potent uvb absorption, light texture, and global approval makes it the most-used chemical uvb filter worldwide.

How It Works: Trans-cinnamate chromophore absorbs uvb at λmax 308nm (εmax ~24,000 l/mol·cm). undergoes trans-cis photoisomerisation reducing uv protection over time — requires photostabilisation with avobenzone or octocrylene. oil-soluble for elegant formulation.

Typically Found In: Sunscreens,foundation with spf,tinted moisturisers

TECHNICAL DETAILS

Primary Category: Active ingredient – chemical uvb filter

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: Up to 10% (eu), 7.5% (us fda)

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 max 10%. aquatic toxicity/coral reef concerns; hawaii and some us states restrict omc. requires photostabilisation for durable spf. ewg score: 5.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Omc's trans-cis photoisomerisation (absorbing uv → converting trans to less-absorbing cis form) was identified as the mechanism for sunscreen product spf decay after uv exposure. this photodegradation led to development of octocrylene and avobenzone photostabilisation strategies — a pharmacokinetic discovery that fundamentally changed sunscreen formulation science.

Last Verified: Cosing database,fda uv filter otc monograph,eu cosmetics annex vi

Primary Sources: 2026-03-12

DESCRIPTION

What It Does: Physically reflects and scatters uvb and uva-ii radiation providing broad-spectrum physical sun protection.

Why It's Used: Most widely used mineral uv filter – photostable, non-irritating physical sun protection compatible with all skin types including baby and sensitive skin.

How It Works: High refractive index (2.5–2.7) and semiconductor bandgap provide physical reflection and absorption of uv radiation. primarily uvb (280–320nm) and uva-ii (320–340nm) protection, less effective for uva-i (340–400nm) vs zinc oxide.

Typically Found In: Sunscreens,tinted products,foundations,baby sunscreens

TECHNICAL DETAILS

Primary Category: Active ingredient – mineral uv filter

Secondary Functions: Photostable uv filter,opacifier

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1%–25% (spf products: eu max 25%)

SOURCING & ETHICS

Vegan Status: Yes – inorganic mineral

Halal Status: Yes

Source Notes: Produced from ilmenite or rutile mineral processing. nano tio2 (<100nm) for transparency; non-nano for opacity.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Non-irritating; suitable for baby and sensitive skin.

Safe for Sensitive Skin: Yes at recommended concentrations

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. fda category i grase for sunscreen. eu max 25%. non-nano preferred for safety. ewg score: 1.

Works Well With: Niacinamide,salicylic acid,other actives

Avoid Combining With: No significant incompatibilities at standard concentrations

SCIENTIFIC NOTE

Tio2 provides superior uvb protection vs zno but inferior uva-i coverage. this complementarity means tio2+zno combination sunscreens provide more complete uv spectrum coverage (uvb+uva-i+uva-ii) than either mineral filter alone.

Last Verified: Cosing database,fda sunscreen grase ruling,ewg sunscreen database

Primary Sources: 2026-03-12