Head to head

La Roche-Posay Hyalu B5 Suractivated Serum vs Medik8 Crystal Retinal 6

Same comparison whichever way you searched it: Medik8 Crystal Retinal 6 vs La Roche-Posay Hyalu B5 Suractivated Serum.

The bottom line

Medik8 Crystal Retinal 6 does more across the board (it leads on brightening / tone, anti-aging), while La Roche-Posay Hyalu B5 Suractivated Serum is the simpler, more pared-back pick.

Reach for Medik8 Crystal Retinal 6 if you want the actives; La Roche-Posay Hyalu B5 Suractivated Serum if you want fewer ingredients doing less, gently.

La Roche-Posay Hyalu B5 Suractivated Serum keeps clear of pregnancy-flagged actives, while Medik8 Crystal Retinal 6 carries one that is best paused in pregnancy.

La Roche-PosayHyalu B5 Suractivated SerumSerum · ~$40See every ingredient in Hyalu B5 Suractivated Serum, decoded
Medik8Crystal Retinal 6Serum · ~€86See every ingredient in Crystal Retinal 6, decoded

Which should you pick?

Pick Hyalu B5 Suractivated Serum if

  • you want the more affordable option
  • you are pregnant or breastfeeding

Pick Crystal Retinal 6 if

  • dark spots, dullness or an uneven tone are your focus
  • fine lines and firmness are the goal

What each delivers

HydrationBarrierBrighteningOil-controlAnti-aging
Hyalu B5 Suractivated SerumCrystal Retinal 6
  • Hydration
    1010
  • Barrier repair
    87
  • Brightening / tone
    38
  • Oil-control & blemishes
    34
  • Anti-aging
    79

Side by side

Hyalu B5 Suractivated SerumCrystal Retinal 6
TypeSerumSerum
Key activesGlycerin, Pro-vitamin B5, Hyaluronic acidGlycerin, Retinal, Squalane
TextureA light, fast-absorbing texture that layers cleanly under the rest of your routine, with no greasy film.A rich, cushiony cream that sinks in slowly.
FragranceContains fragranceContains fragrance
Fungal-acne safeNot likelyNot likely
PregnancyNo flagged activesOne caution
Ingredients32 listed47 listed
Price~$40~€86

What's in one but not the other

The molecule doing the work

Hyalu B5 Suractivated SerumGlycerin
Crystal Retinal 6Glycerin

Better for…

  • Dark spots & uneven toneCrystal Retinal 6
  • Fine lines & firmnessCrystal Retinal 6
  • Dryness & dehydrationEither works
  • Sensitive, reactive skinHyalu B5 Suractivated Serum

La Roche-Posay Hyalu B5 Suractivated Serum is the cheaper of the two (~$40 vs ~€86).

Ready to pick one?

Affiliate links, so a purchase sends us a small commission at no extra cost to you. As an Amazon Associate, Glow Simplified earns from qualifying purchases. We make and sell nothing here, so the verdict above never bends toward a sale.

Common questions

Is La Roche-Posay Hyalu B5 Suractivated Serum or Medik8 Crystal Retinal 6 better for dark spots & uneven tone?

For dark spots & uneven tone, Medik8 Crystal Retinal 6 is the stronger pick by our read of the two formulas. Medik8 Crystal Retinal 6 does more across the board (it leads on brightening / tone, anti-aging), while La Roche-Posay Hyalu B5 Suractivated Serum is the simpler, more pared-back pick. Reach for Medik8 Crystal Retinal 6 if you want the actives; La Roche-Posay Hyalu B5 Suractivated Serum if you want fewer ingredients doing less, gently. La Roche-Posay Hyalu B5 Suractivated Serum keeps clear of pregnancy-flagged actives, while Medik8 Crystal Retinal 6 carries one that is best paused in pregnancy.

Which is cheaper, La Roche-Posay Hyalu B5 Suractivated Serum or Medik8 Crystal Retinal 6?

La Roche-Posay Hyalu B5 Suractivated Serum is the cheaper of the two (~$40 vs ~€86).

Can I use La Roche-Posay Hyalu B5 Suractivated Serum and Medik8 Crystal Retinal 6 together?

They are both serums, so you would normally pick one rather than layer both in the same step. You can keep both and alternate them (morning and night, or on different days) if you like variety, but you do not need two.

Compare it with…

All 28 comparisons
Chemical structure of GlycerinChemical structure of Glycerin