Kaya
Kaya Regenerist Hair Serum
Kaya Regenerist Hair Serum is designed to help with hair thinning and loss by stimulating the scalp and strengthening hair at the roots. It contains active ingredients such as 5% Capixyl, 3% Redensyl, and 3% Procapil to promote healthier hair.
Sulfate-free
Paraben-free
Thinning
Hair Loss
Breakage
All Types
Optimized for Your Environment & Lifestyle
Nykaa
In stock
Recommended
Kaya Regenerist Hair Serum
Kaya
kaya-regenerist-hair-serum
Hair Serum
10202929201445
Morning or Evening?
How often will you use this product?
Notes
Secure payment protection
Your Biodata Compatibility Analysis
Based on your 6 hair health indices and environmental factors
Poor Match
Significant incompatibilities
Growth Cycle Health Index
Hair Match
Hair Health Index Alignment
Optimal for OSI, SSI, DI, HSI
Ingredient Efficacy
Matching Ingredient Score
Environment Compatibility
Current UV, Air Quality & Humidity
Why This Works for Your Specific Profile
Damage Index:
Damage levels outside specified range may not benefit optimally from product formulation
Water Quality:
Fine hair becomes weighed down and greasy from heavy formulation
Hair:
Closed cuticles resist product penetration causing surface buildup without internal benefits
Active Lifestyle:
Activity levels outside optimal range affect product performance and maintenance requirements
Your Hair Profile Integration
Your Hair Archetype
Density Level
Washing Frequency
Shedding Level
Oil Level
Your Hair Health Indices
Oil Secretion (OSI)
Very low oil production
Scalp Sensitivity (SSI)
Very low sensitivity
Growth Rate (CMR)
Poor metabolism rate
Damage Index (DI)
Minimal damage
Hair Strength (HSI)
Very weak strength
Softness Index (SI)
Significant improvement needed
Water & Environmental Integration
Water:
Expected Results & Timeline
Key Highlights
What is it?
Hair Serum with multiple active ingredients like Capixyl, Redensyl, and Procapil
Who Is It For
Adults, All Genders
Budget
$18.14 - $36.28
Timeline
Why Youโll Love It
What Does It Help With?
Hair thinning, Hair loss, Hair breakage
Best for
Hair Loss
Features
Contains 5% Capixyl, 3% Redensyl, and 3% Procapil; Stimulates scalp and hair follicles; Leave-in formula; Suitable for daily use; Helps reduce hair loss and breakage
Checks
100% Authentic (via Vendor)
Ingredients Overview
Ingredients List
aqua,cetostearyl-alcohol,behentrimonium-chloride-isopropyl-alcohol,cetrimonium-chloride,glyceryl-stearate-peg-100-stearate,glycerin,propylene-glycol,pseudozyma-epicola-prunus-amygdalus-dulcis-oil-camellia-japonica-seed-oil-argania-spinosa-kernel-oil-helianthus-annuus-seed-oil-camellia-sinensis-seed-oil,butyrospermum-parkii-shea-butter,stearyl-alcohol-ceteareth-20,ethylhexyl-polyhydroxystearate,isoamyl-laureth,fragrance,phenoxyethanol-ethylhexylglycerine,polyquaternium-37,polyquaternium-44,polyquaternium-7,cetearamidoethyldiethonium-succinoyl-hydrolyzed-pea-protein,hydrolyzed-pea-protein,itaconic-acid-arginine-linum-usitatissimum-seed-extract-salvia-hispanica-seed-extract-polyglyceryl-10-laurate,panthenol,crambe-abyssinica-seed-oil,guar-hydroxypropyltrimonium-chloride,disodium-ethylenediaminetetraacetate
Key Ingredients
Capixyl, Redensyl, Procapil
Ingredients Details
Fragrance
Common Name(s): Fragrance ingredient,eu allergen or aromatic component,olfactory/flavour
CAS Number: N/a
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 โ 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 โ complex mixtures activate multiple receptor types for rich, multidimensional scent experiences.
Typically Found In: All fragrance products
TECHNICAL DETAILS
Primary Category: Active ingredient โ 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 โ very low
Comedogenicity Rating: 0/5 โ 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: 1โ2.
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
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%โ30% (typical: 3โ10%)
SOURCING & ETHICS
Vegan Status: Yes โ plant-derived (coconut, soy, palm) or synthetic
Halal Status: Yes โ 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 โ very low; non-irritating at all standard concentrations
Comedogenicity Rating: 0/5 โ 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
Panthenol
Common Name(s): Provitamin b5,d-panthenol,dl-panthenol,d-pantothenyl alcohol,(r)-2,4-dihydroxy-n-(3-hydroxypropyl)-3,3-dimethylbutanamide
DESCRIPTION
What It Does: Panthenol deeply moisturizes skin and hair, soothes irritation, accelerates wound healing, strengthens the skin barrier, and improves hair elasticity and shine.
Why It's Used: It is used because it is exceptionally versatile, working in both skin and hair formulations. it is gentle enough for sensitive and post-procedure skin, and converts to the active vitamin b5 within the skin.
How It Works: Panthenol penetrates skin and hair, where it is oxidized to pantothenic acid (vitamin b5), a coenzyme a precursor essential to metabolism. in skin, it acts as a humectant and stimulates fibroblast proliferation. in hair, it coats the shaft, improving manageability.
Typically Found In: Moisturizers,serums,toners,after-sun products,wound healing products,shampoos,conditioners,hair masks,beard care
TECHNICAL DETAILS
Primary Category: Active ingredient โ provitamin b5
Secondary Functions: Anti-inflammatory,wound healing,hair conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%โ5% (typical: 1โ3%)
SOURCING & ETHICS
Vegan Status: Yes โ synthetically produced
Halal Status: Yes
Source Notes: Commercially synthesized. both d- and dl-forms used in cosmetics; d-panthenol is the biologically active isomer but dl-panthenol is less expensive and widely used.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low; one of the most soothing ingredients in cosmetics
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Extremely rare contact allergy; considered one of the safest cosmetic ingredients. suitable for all skin types.
Safe for Sensitive Skin: Yes โ ideal for sensitive, reactive, and post-procedure skin
SAFETY & COMPATIBILITY
Safety Profile: Exceptionally safe. ewg hazard score: 1. no significant concerns for irritation, sensitization, or systemic toxicity. safe during pregnancy.
Works Well With: Hyaluronic acid,ceramides,allantoin,niacinamide,centella asiatica,retinol (reduces irritation),glycerin
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Panthenol has demonstrated wound-healing properties in clinical studies, stimulating fibroblast proliferation and migration. its dual humectant and anti-inflammatory action makes it particularly effective in barrier-repair formulations.
Last Verified: Cosing database,cir safety assessment,ebner et al. (2002) skin pharmacology and applied skin physiology
Primary Sources: 2026-03-12
Polyquaternium-37
Common Name(s): Polyquaternium-37,inci ingredient,cosmetic active
CAS Number: N/a
DESCRIPTION
What It Does: Provides documented cosmetic activity from polyquaternium-37.
Why It's Used: Polyquaternium-37 delivers formulation value through its specific biological activity and established safety and efficacy.
How It Works: Source: polyquaternium-37. mechanism: documented in cosmetic literature. safety: cosing-reviewed. standard cosmetic use concentrations.
Typically Found In: Skin care formulations,active products
TECHNICAL DETAILS
Primary Category: Active ingredient โ antioxidant
Secondary Functions: Free radical scavenging,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ5%
SOURCING & ETHICS
Vegan Status: Conditional
Halal Status: Yes
Source Notes: Plant-derived extract or synthetic.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; well-tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Vitamin c,vitamin e,ferulic acid,spf,other antioxidants
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Polyquaternium-37 provides cosmetic activity through its characteristic mechanism. at standard concentrations it delivers documented biological activity with an established safety profile from cosmetic science literature and regulatory review.
Last Verified: Cosing database,polyquaternium-37 technical literature
Primary Sources: 2026-03-12
Personalized Usage Instructions
How to Use
Step 1
Press the soft tip applicator against the cap's flat surface to unlock it
Step 2
Section hair and apply a generous amount of serum directly all over the clean scalp using an applicator once daily, preferably at bedtime
Step 3
Massage the serum thoroughly onto your scalp as it is designed to be leave-in treatment
Step 4
It's important not to wash your hair or scalp immediately after application
Medical Chemicals
Protein/Moisture
- Protein/Moisture balance
pH Level
-
Porosity Taget
- Normal Porosity
Customized for Your Profile
Scalp Condtions
Sensitive Scalp
Climate Suitability
Humid, Dry, UV Protection, Pollution Shield
Clinical Claims
Frequency
Press the soft tip applicator against the cap's flat surface to unlock it. Section hair and apply a generous amount of serum directly all over the clean scalp using an applicator once daily, preferably at bedtime. Massage the serum thoroughly onto your scalp as it is designed to be leave-in treatment. It's important not to wash your hair or scalp immediately after application.
Product Information
100% Authentic (via Vendor)