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La Roche-Posay Hyalu B5 Hyaluronic Acid Serum for Face: fungal acne, pore-clogging and pregnancy check

La Roche-Posay Hyalu B5 Hyaluronic Acid Serum for Face product photo
Image: Amazon

Fungal acne: 1 flaggedPore-clogging: LowPregnancy: none flagged

$39.97 on Amazon, as of 27 Oct 2026 20:52 JST. Prices change; the price on Amazon at time of purchase applies.

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Fungal acne

Contains flagged ingredients

  • glyceryl isostearate (Glyceryl and PEG fatty esters)

Pore-clogging

Low risk No ingredients rated 3 or higher were found.

Pregnancy

No commonly flagged ingredients Still ask your doctor before use in pregnancy.

Flagged ingredient table

#IngredientCheckerWhy
10glyceryl isostearateFungal acneGlyceryl and PEG fatty esters

Full ingredient list

Aqua/water, glycerin, alcohol denat, propylene glycol, panthenol, pentylene glycol, dimethicone, peg-6 caprylic/capric glycerides, ppg-6-decyltetradeceth-30, glyceryl isostearate, madecassoside, sodium hyaluronate, ammonium polyacryloyldimethyl taurate, disodium EDTA, hydrolyzed hyaluronic acid, caprylyl glycol, citric acid, xanthan gum, butylene glycol, tocopherol, phenoxyethanol, parfum/fragrance

Source: Open Beauty Facts, last edited 2026-02-16. Check the packaging, as formulas change.

Not medical advice. These checks read the published ingredient list against public rule lists; results vary from person to person, formulas change, and ingredient lists can be incomplete. Ask a dermatologist or your doctor (and in pregnancy, your midwife or obstetrician) before relying on them.

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