
Highlights
WHAT IS IT?
A serum with 11 ingredients
FEATURES
Clinically proven to reduce the appearance of dark spots in nine weeks
BEST FOR
All skin types including sensitive skin
CHECKS
Free from parabens, PEG, phthalates, perfumes, synthetic colours.
Who Is It For?
Adults Women And MenWhat Does It Help With?
Dark Spots Hyperpigmentation Uneven Skin ToneBudget
PremiumHow To Use
Which routine should it be used in?
Instructions:
Key Information
What Pai Skincare Says
Product Description:
Marine Algae Dark Spot Serum for Sensitive Skin
About the Brand:
Ingredients Overview
Ingredients List
AQUA, PENTYLENE GLYCOL, CITRUS LIMON FRUIT WATER (lemon fruit water), GLYCERIN, HEPTYL UNDECYLENATE, HYDROGENATED LECITHIN, ASCORBYL TETRAISOPALMITATE (vitamin c), HIMANTHALIA ELONGATA EXTRACT (algae), XANTHAN GUM, TOCOPHEROL (vitamin e), ARGININE, SODIUM HYALURONATE, MAGNOLIA OFFICINALIS BARK EXTRACT (magnolia extract), SODIUM PHYTATE, ASCORBIC ACID (vitamin c), BACKHOUSIA CITRIODORA LEAF EXTRACT (lemon myrtle), LACTIC ACID, CITRAL (naturally occurring in essential oils)
Key Ingredients
Marine Algae, Stabilized Vitamin C, Hyaluronic Acid, Vitamin E
Ingredients Details
Ascorbyl Tetraisopalmitate Vitamin C
Common Name(s): Ascorbyl tetraisopalmitate vitamin c
DESCRIPTION
What It Does: Neutralizes free radicals, supports collagen biosynthesis, and inhibits melanin overproduction for brightened, protected, and younger-looking skin.
Why It's Used: Vitamins support fundamental enzymatic and antioxidant processes in skin cells; topical delivery addresses localized deficiencies and enhances concentrations beyond systemic levels.
How It Works: The vitamin pharmacophore donates electrons to free radicals, chelates metal ion pro-oxidants, and serves as a cofactor for skin enzymes (e.g., prolyl hydroxylase for collagen synthesis), providing multi-mechanism skin protection.
Typically Found In: Serums,moisturizers,eye creams,sunscreens
TECHNICAL DETAILS
Primary Category: Vitamin derivatives
Secondary Functions: Antioxidant,brightening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1–20%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic vitamin derivative; 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: Other antioxidants,ferulic acid,hyaluronic acid
Avoid Combining With: Incompatible oxidizing agents; check ph stability
SCIENTIFIC NOTE
Vitamin derivatives in cosmetics function as prodrugs: esterase enzymes in skin cleave the ester bond to release the free vitamin acid or alcohol. the rate of release depends on the ester chain length and branching (log p), with shorter chain esters hydrolyzing faster. free vitamin concentration in skin determines efficacy, making ester hydrolysis rate a critical formulation parameter.
Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature
Primary Sources: 2025-01-15
Citrus Limon Fruit Water Lemon Fruit Water
Common Name(s): Citrus limon fruit water lemon fruit water extract
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
Glycerin
Common Name(s): Glycerol,glycerine,1,2,3-propanetriol
CAS Number: 56-81-5
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
Heptyl Undecylenate
Common Name(s): Heptyl undecylenate,heptyl undecylenate,cosmetic functional ingredient,established active
CAS Number: N/a
DESCRIPTION
What It Does: Provides the characteristic cosmetic function of its ingredient class through molecular chemistry at recommended use concentration.
Why It's Used: Heptyl undecylenate is selected for the specific functional properties of its molecular class — the chemical architecture of heptyl undecylenate delivers the required cosmetic performance through documented interactions with skin biology and formulation matrix.
How It Works: Functional groups interact with formulation and skin through h-bonding, ionic association, or receptor activity as appropriate.
Typically Found In: Cosmetic 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
Safety documented in cosing at standard formulation concentrations.
Last Verified: Cosing database,heptyl undecylenate technical review
Primary Sources: 2026-03-22