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Hyalu B5 Pure Hyaluronic Acid Serum

Sensitive SkinSerum

Hyalu B5 Pure Hyaluronic Acid Serum — Reddit Reviews

by La Roche-Posay

23mentionsacross 5 Reddit threads

Updated July 24, 2026

What the community says

A hyaluronic acid + ceramide serum delivering solid hydration and barrier support that's a go-to in dry, sensitive skin routines but can cause irritation or pore-clogging in some acne-prone or barrier-compromised users.

From Reddit

Backed by 5 threads from r/tretinoin and r/SkincareAddiction.

Read the threads ↓

What people love

  • Strong hydration boost — well-loved for layering on damp skin to lock in moisture
  • Contains barrier-supporting ceramides, helping with dryness and redness
  • Fragrance- and alcohol-free formula options compatible with sensitive skin when patch tested

Watch out for

  • Can sting or cause redness, especially on compromised or sensitive skin prone to barrier issues
  • Reports of breakouts or clogged pores, so not ideal for acne-prone users without patch testing
  • Some formulations include alcohol and parfum, which may increase irritation risk

Product details

Where to buy

Real Reddit threads

5 threads from r/tretinoin, r/SkincareAddiction

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