Hair Growth Activating Serum

Under Your Skin

Where to buy Possibly in stock

About this product

The Under Your Skin Hair Growth Activating Serum is a misc. Our analysis of its 14 ingredients (11 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
14
Low-risk
11
Fragrance
Fragrance-free
Origin
Sweden

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe Minimal Ingredients

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 2/2
Good for dry skin
Glycerin Lactic Acid
Caution for dry skin
Maltodextrin Glycerin
Oily/Acne-Prone Skin No data
Sensitive Skin 1/5
Good for sensitive skin
Glycerin
Caution for sensitive skin
Levulinic Acid Glycerin Sodium Benzoate Potassium Sorbate Lactic Acid

Ingredients list

14 total
Lower hazard (1) Higher hazard (4)
All14 Skin Conditioning13 Fragrance6 Solvent3 Humectant3 Emulsion Stabilising2 Film Forming2 Perfuming2 Preservative2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
Curcuma Longa Callus Conditioned Media
(Skin Conditioning)
1
Sodium Levulinate
(Skin Conditioning)
4
B
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Sodium Anisate
(Antimicrobial, Flavoring Agent)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
A
Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding)
1
A
Beta-Glucan
(Bulking Agent, Skin Conditioning)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
Levulinic Acid
(Fragrance, Skin Conditioning, Perfuming)
1
Phytic Acid
(Chelating Agent, Oral Care Agent)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Glycerin
Humectant, Skin Protecting
Curcuma Longa Callus Conditioned Media
Skin Conditioning
Sodium Levulinate
Skin Conditioning
Lactic Acid
Exfoliant, Humectant
Pentylene Glycol
Skin Conditioning
TOCOPHEROL
Antioxidant, Skin Conditioning

Benefits

No standout benefits flagged for this product.

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Curcuma Longa Callus Conditioned Media
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Sodium Levulinate
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Sodium Anisate
Antimicrobial, Flavoring agent
Low-hazard ingredient.Read moreShow less
EWG 1 AntimicrobialFlavoring agent
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
Maltodextrin
Absorbent, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbsorbentBinding agentEmulsion stabilisingFilm formingHair conditioningSkin conditioningSuspending agent - nonsurfactantBinding
Beta-Glucan
Bulking agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Bulking agentSkin conditioning
Sodium Benzoate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservativeAnticorrosiveMasking
Potassium Sorbate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
Levulinic Acid
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceSkin conditioningPerfuming
Phytic Acid
Chelating agent, Oral care agent
Low-hazard ingredient.Read moreShow less
EWG 1 Chelating agentOral care agent
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Lactic Acid
Exfoliant, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantFragranceHumectantPh adjusterSkin-conditioning agent -humectantSkin conditioningBuffering agent Bad for Sensitive Skin

How to use

How to use

  • 1 Evening, start slow: Best in the PM a few times a week to begin with; avoid layering with other strong actives the same night.
  • 2 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

AHA (acid exfoliant) 5–10% (OTC)

OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.

Lactic Acid

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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