Hydra Replenishing Booster

Algologie

Where to buy Possibly in stock

About this product

The Algologie Hydra Replenishing Booster is a serums, essence, ampoule. Our analysis of its 22 ingredients (20 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
22
Low-risk
20
Fragrance
Contains fragrance
Origin
France
Data updated
May 2026

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
Sea Salt Caprylic/Capric Triglyceride Butylene Glycol Sodium Hyaluronate Glycerin
Caution for dry skin
Glycerin Sodium Hydroxide Polysorbate 20
Oily/Acne-Prone Skin No data
Sensitive Skin 3/7
Good for sensitive skin
Codium Tomentosum Extract Undaria Pinnatifida Extract Glycerin
Caution for sensitive skin
Sea Salt Caprylic/Capric Triglyceride Butylene Glycol Glycerin Citric Acid Sodium Benzoate Potassium Sorbate

Ingredients list

22 total
Lower hazard (1) Higher hazard (3)
All22 Skin Conditioning13 Fragrance6 Solvent5 Humectant5 Masking5 Preservative3 Skin Protecting3 Viscosity Controlling3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
PARFUM
(Fragrance, Perfuming)
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
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
1
A
Sodium Gluconate
(Chelating Agent, Skin Conditioning)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
Sea Salt
(Abrasive, Humectant, Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
Eryngium Maritimum Extract
(Tonic)
1
Codium Tomentosum Extract
(Skin Protecting)
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
Porphyridium Cruentum Extract
(Skin Conditioning)
1
Undaria Pinnatifida Extract
(Skin Conditioning, Skin Protecting)
1
Salicornia Herbacea Extract
(Skin Conditioning)
1
Crithmum Maritimum Extract
(Skin Conditioning, Tonic)

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

Hyaluronic Acid
Hydrates by attracting and holding water.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

Barrier RepairStrengthen and restore your skin's natural barrier.
HydratingBoosts hydration and relieves dry, tight skin.
Anti-AgingSoftens lines and helps skin look youthful.
Redness ReducingSoothes visible redness and calms irritation.
Scar HealingImproves the look of marks and scars.

Concerns

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

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Sodium Benzoate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservativeAnticorrosiveMasking
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingFilm formingViscosity controlling
PARFUM
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Chlorphenesin
Cosmetic biocide, Antimicrobial
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Cosmetic biocideAntimicrobialPreservative
Sodium Gluconate
Chelating agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentSkin conditioning
Sodium Hydroxide
Denaturant, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantPh adjusterBuffering agent
Sea Salt
Abrasive, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveHumectantBulking agentMaskingOral care agentViscosity controlling
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Eryngium Maritimum Extract
Tonic
Limited public safety data.Read moreShow less
EWG N/A Tonic
Codium Tomentosum Extract
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
Potassium Sorbate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
Porphyridium Cruentum Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Undaria Pinnatifida Extract
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningSkin protecting
+ 2 more — see the full ingredients list above
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning & evening: Suitable for both AM and PM use.

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

Trust & honesty

Officially notified as a cosmetic in Malaysia (NPRA). Government registration record.

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