Lactic Acid Skin Renewal Serum

Measureable Difference

Where to buy Possibly in stock

About this product

The Measureable Difference Lactic Acid Skin Renewal Serum is a serums, essence, ampoule. Our analysis of its 17 ingredients (9 low-risk) rates it Excellent (92/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
17
Low-risk
9
Fragrance
Contains fragrance
Origin
United States

The evidence

Quick Product Notes

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

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 5/3
Good for dry skin
Caprylyl Glycol Sodium PCA Sodium Hyaluronate Hydrolyzed Collagen Lactic Acid
Caution for dry skin
Salicylic Acid Polysorbate 20 PEG-25 Hydrogenated Castor Oil
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Salicylic Acid
Sensitive Skin 0/5
Caution for sensitive skin
Salicylic Acid Sorbic Acid PEG-25 Hydrogenated Castor Oil Lactic Acid Phenoxyethanol

Ingredients list

17 total
Lower hazard (1) Higher hazard (4)
All17 Skin Conditioning17 Humectant8 Fragrance7 Hair Conditioning6 Preservative3 Exfoliant2 Emulsifying2 Surfactant2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
Buttermilk Extract Powder
(Antioxidant, Emulsion Stabilising, Hair Conditioning, Humectant, Skin Conditioning, Skin Conditioning Emollient)
1
A
Hydrolyzed Collagen
(Hair Conditioning, Nail Conditioning Agent, Skin Conditioning, Antistatic Agent, Emollient, Film Forming, Humectant)
3
PEG-25 Hydrogenated Castor Oil
(Fragrance, Emulsifying, Surfactant)
Chlorella Emersonii Extract
(Skin Conditioning)
Cocos Nucifera Fruit Juice
(Hair Conditioning, Humectant, Skin Conditioning, Skin Conditioning Emollient)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
B
Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
4
B
Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
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
3
A
Sorbic Acid
(Fragrance, Preservative)
Bisabolol
(Fragrance, Skin Conditioning, Soothing)
1
Astaxanthin
(Cosmetic Colorant, Skin Conditioning)
PARFUM
(Fragrance, Perfuming)

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

Buttermilk Extract Powder
Antioxidant, Humectant
Hydrolyzed Collagen
Skin Conditioning, Emollient
Chlorella Emersonii Extract
Skin Conditioning
Cocos Nucifera Fruit Juice
Humectant, Skin Conditioning
Sodium Hyaluronate
Skin Conditioning, Humectant
Caprylyl Glycol
Skin Conditioning, Emollient

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Buttermilk Extract Powder
Antioxidant, Emulsion stabilising
Limited public safety data.Read moreShow less
EWG N/A AntioxidantEmulsion stabilisingHair conditioningHumectantSkin conditioningSkin conditioning emollient
Hydrolyzed Collagen
Hair conditioning, Nail conditioning agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningNail conditioning agentSkin conditioningAntistatic agentEmollientFilm formingHumectant
PEG-25 Hydrogenated Castor Oil
Fragrance, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 FragranceEmulsifyingSurfactant
Chlorella Emersonii Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Cocos Nucifera Fruit Juice
Hair conditioning, Humectant
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningHumectantSkin conditioningSkin conditioning emollient
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Sorbic Acid
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
Bisabolol
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioningSoothing
Astaxanthin
Cosmetic colorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Cosmetic colorantSkin conditioning
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Sodium PCA
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioning Good for Dry Skin
Salicylic Acid
Antiacne agent, Antidandruff agent
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B Antiacne agentAntidandruff agentCorn/callus/wart removerDenaturantExfoliantFragranceHair conditioningSkin conditioningKeratolyticMaskingPreservative Good for Oily SkinBad for Sensitive Skin
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 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Evening, start slow: Best in the PM a few times a week to begin with; avoid layering with other strong actives the same night.
  • 3 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

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Use with caution
BHA (salicylic) (Salicylic Acid)

Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

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

BHA (salicylic) 0.5–2%

Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.

Salicylic Acid

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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