Aqua / Water
Skin Conditioning
Aqua / Water is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum
For routine context, La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum reads as a skincare serum with the ingredient list doing most of the work. Key formula cues include barrier support, madecassoside, centella, hyaluronic acid, and AHA. Texture cues lean hydrating and quick dry.
Dupes for
BuyWhat's inside
Ingredients List
Benefit signalWatch noteFunctional base
Aqua / Water
Skin Conditioning
Glycerin
Humectant
0 / 0HydratingAlcohol Denat.
Skin Conditioning
Irritation riskPropylene Glycol
Humectant
0 / 0HydratingIrritation riskPanthenol
Skin Conditioning
+17 more ingredients
Pentylene Glycol
Skin Conditioning
Dimethicone
Skin Conditioning
Peg-6 Caprylic/capric Glycerides
Skin Conditioning
Ppg-6-decyltetradeceth-30
Skin Conditioning
Glyceryl Isostearate
Skin Conditioning
Madecassoside
Skin Conditioning
Sodium Hyaluronate
Humectant
0 / 0HydratingBarrier supportAmmonium Polyacryloyldimethyl Taurate
Skin Conditioning
Disodium EDTA
Skin Conditioning
Hydrolyzed Hyaluronic Acid
Skin Conditioning
Caprylyl Glycol
Skin Conditioning
Citric Acid
Skin Conditioning
Irritation riskXanathan Gum
Skin Conditioning
Butylene Glycol
Humectant
1 / 0HydratingTocopherol
Antioxidant
Barrier supportPhenoxyethanol
Skin Conditioning
Parfum / Fragrance
Skin Conditioning
Key ingredients
Benefits
Concerns
Ingredients Explained
Glycerin
Humectant, Skin Conditioning
Glycerin is a classic humectant that draws water toward the skin surface. It is one of the most reliable support ingredients for making a formula feel hydrating and comfortable.
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Its role is not flashy, but it matters: glycerin can soften the feel of active formulas and help reduce the tight finish that some lightweight serums leave behind.
Alcohol Denat.
Skin Conditioning
Alcohol Denat. is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Propylene Glycol
Humectant, Solvent
Propylene Glycol is a supporting ingredient that works as both a humectant and a solvent. It helps pull water toward the skin surface while also helping other ingredients dissolve cleanly in the formula.
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In a serum, it can improve slip and help the product feel less patchy as it spreads. Very reactive skin may still want to patch test, especially when it appears in an already active formula.
Panthenol
Skin Conditioning
Panthenol is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Pentylene Glycol
Skin Conditioning
Pentylene Glycol is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Dimethicone
Skin Conditioning
Dimethicone is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Peg-6 Caprylic/capric Glycerides
Skin Conditioning
Peg-6 Caprylic/capric Glycerides is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Ppg-6-decyltetradeceth-30
Skin Conditioning
Ppg-6-decyltetradeceth-30 is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Glyceryl Isostearate
Skin Conditioning
Glyceryl Isostearate is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Madecassoside
Skin Conditioning
Madecassoside is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a salt form of hyaluronic acid and acts as a humectant. It helps the skin surface hold onto water, which can make a vitamin C serum feel more comfortable and less drying.
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This ingredient is mostly about hydration and finish. It does not replace moisturizer, but it can help the formula leave skin looking smoother and more lightly plumped.
Ammonium Polyacryloyldimethyl Taurate
Skin Conditioning
Ammonium Polyacryloyldimethyl Taurate is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Disodium EDTA
Skin Conditioning
Disodium EDTA is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Hydrolyzed Hyaluronic Acid
Skin Conditioning
Hydrolyzed Hyaluronic Acid is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Caprylyl Glycol
Skin Conditioning
Caprylyl Glycol is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Citric Acid
Skin Conditioning
Citric Acid is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Xanathan Gum
Skin Conditioning
Xanathan Gum is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Butylene Glycol
Humectant, Solvent, Skin Conditioning
Butylene Glycol is a lightweight humectant and solvent. It helps formulas spread smoothly while adding a bit of hydration support without making the texture feel heavy.
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It is usually a background helper rather than the headline active. Its main contribution is improving feel, ingredient distribution, and day-to-day comfort on skin.
Tocopherol
Antioxidant, Skin Conditioning
Tocopherol is a form of vitamin E used for antioxidant support and skin conditioning. It helps round out formulas that already include brightening or antioxidant ingredients.
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It is often paired with vitamin C and ferulic acid because the trio can support a broader antioxidant story while also making the formula feel more nourishing on skin.
Phenoxyethanol
Skin Conditioning
Phenoxyethanol is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.
Parfum / Fragrance
Skin Conditioning
Parfum / Fragrance is included as a skin conditioning ingredient in this formula. Its practical effect depends on concentration, formula context, and how your skin tolerates the finished product.