Beta Acid

Le Mieux

Where to buy Possibly in stock

About this product

The Le Mieux Beta Acid is a exfoliating scrubs & peeling gel. Our analysis of its 13 ingredients (5 low-risk) rates it Excellent (90/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Exfoliating Scrubs & Peeling Gel
Ingredients
13
Low-risk
5
Fragrance
Fragrance-free
Origin
United States

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 2/1
Good for dry skin
Parietaria Officinalis Extract Lactic Acid
Caution for dry skin
Salicylic Acid
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Salicylic Acid
Sensitive Skin 2/3
Good for sensitive skin
Sambucus Nigra Flower Extract Parietaria Officinalis Extract
Caution for sensitive skin
Salicylic Acid Arnica Montana Flower Extract Lactic Acid

Ingredients list

13 total
Lower hazard (1) Higher hazard (4)
All13 Skin Conditioning11 Solvent3 Soothing3 Fragrance3 Masking2 Exfoliant2 Skin Conditioning Emollient2 Viscosity Controlling2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
4
A
SD Alcohol 40-B
(Astringent, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
HAMAMELIS VIRGINIANA LEAF EXTRACT
(Skin Conditioning)
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
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Sambucus Nigra Flower Extract
(Refreshing, Skin Conditioning, Soothing, Tonic)
MALVA SYLVESTRIS EXTRACT
(Astringent, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing)
1
Parietaria Officinalis Extract
(Emollient, Soothing)
Hedera Helix Leaf Extract
(Skin Conditioning)
Cucumis Sativus Fruit Extract
(Skin Conditioning, Skin Conditioning Emollient)
2
Arnica Montana Flower Extract
(Masking, Perfuming, Skin Conditioning)
CHAMOMILLA RECUTITA FLOWER EXTRACT
(Fragrance, Skin Conditioning)

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

AHA
Exfoliates skin for a brighter complexion.
BHA
Unclogs pores and reduces excess oil.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
BrighteningRestores radiance to dull, tired skin.
Reduces IrritationEases discomfort and supports skin resilience.
Good For Oily SkinBalances oil and helps reduce shine.
Reduces Large PoresMinimizes the look of enlarged pores.
Redness ReducingSoothes visible redness and calms irritation.
Skin TextureSmooths rough patches and refines texture.
Barrier RepairStrengthen and restore your skin's natural barrier.

Concerns

May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
HAMAMELIS VIRGINIANA LEAF EXTRACT
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Sambucus Nigra Flower Extract
Refreshing, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 RefreshingSkin conditioningSoothingTonic
MALVA SYLVESTRIS EXTRACT
Astringent, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A AstringentSkin conditioningSkin conditioning emollientSmoothingSoothing
Parietaria Officinalis Extract
Emollient, Soothing
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientSoothing
Hedera Helix Leaf Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Cucumis Sativus Fruit Extract
Skin conditioning, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning emollient
Arnica Montana Flower Extract
Masking, Perfuming
Low-hazard ingredient.Read moreShow less
EWG 2 MaskingPerfumingSkin conditioning
CHAMOMILLA RECUTITA FLOWER EXTRACT
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
SD Alcohol 40-B
Astringent, Solvent
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 4 CIR A AstringentSolventViscosity controlling Bad for Dry SkinBad for Sensitive 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 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

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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