Head to head
Medik8 Crystal Retinal 6 vs Medik8 Liquid Peptides
Same comparison whichever way you searched it: Medik8 Liquid Peptides vs Medik8 Crystal Retinal 6.
The bottom lineMedik8 Crystal Retinal 6 does more across the board (it leads on brightening / tone, anti-aging), while Medik8 Liquid Peptides is the simpler, more pared-back pick.
Reach for Medik8 Crystal Retinal 6 if you want the actives; Medik8 Liquid Peptides if you want fewer ingredients doing less, gently.
Medik8 Liquid Peptides keeps clear of pregnancy-flagged actives, while Medik8 Crystal Retinal 6 carries one that is best paused in pregnancy.
Which should you pick?
Pick Crystal Retinal 6 if
- dark spots, dullness or an uneven tone are your focus
- fine lines and firmness are the goal
Pick Liquid Peptides if
- your skin is sensitive or reacts to fragrance
- you want the more affordable option
- you are pregnant or breastfeeding
What each delivers
Side by side
| Crystal Retinal 6 | Liquid Peptides | |
|---|---|---|
| Type | Serum | Serum |
| Key actives | Glycerin, Retinal, Squalane | Glycerin, Hyaluronic acid, Pro-vitamin B5 |
| Texture | A rich, cushiony cream that sinks in slowly. | A light, fast-absorbing texture that layers cleanly under the rest of your routine, with no greasy film. |
| Fragrance | Contains fragrance | None detected |
| Fungal-acne safe | Not likely | Not likely |
| Pregnancy | One caution | No flagged actives |
| Ingredients | 47 listed | 35 listed |
| Price | ~€86 | ~€52 |
What's in one but not the other
Only in Crystal Retinal 6
Both share
Only in Liquid Peptides
The molecule doing the work
Better for…
- Dark spots & uneven toneCrystal Retinal 6
- Fine lines & firmnessCrystal Retinal 6
- Dryness & dehydrationEither works
- Sensitive, reactive skinLiquid Peptides
Medik8 Liquid Peptides is the cheaper of the two (~€52 vs ~€86).
Ready to pick one?
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Common questions
Is Medik8 Crystal Retinal 6 or Medik8 Liquid Peptides 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 Medik8 Liquid Peptides is the simpler, more pared-back pick. Reach for Medik8 Crystal Retinal 6 if you want the actives; Medik8 Liquid Peptides if you want fewer ingredients doing less, gently. Medik8 Liquid Peptides keeps clear of pregnancy-flagged actives, while Medik8 Crystal Retinal 6 carries one that is best paused in pregnancy.
Which is cheaper, Medik8 Crystal Retinal 6 or Medik8 Liquid Peptides?
Medik8 Liquid Peptides is the cheaper of the two (~€52 vs ~€86).
Can I use Medik8 Crystal Retinal 6 and Medik8 Liquid Peptides 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 26 comparisons
- Crystal Retinal 6 vs The Ordinary Niacinamide 10% + Zinc 1%
- Crystal Retinal 6 vs The Ordinary Hyaluronic Acid 2% + B5 (Original Formulation)
- Crystal Retinal 6 vs The Ordinary Hyaluronic Acid 2% + B5 (with Ceramides)
- Crystal Retinal 6 vs The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
- Crystal Retinal 6 vs The Ordinary Retinol 0.5% in Squalane
- Crystal Retinal 6 vs CeraVe Resurfacing Retinol Serum
- Crystal Retinal 6 vs The Ordinary Azelaic Acid Suspension 10%
- Crystal Retinal 6 vs La Roche-Posay Hyalu B5 Suractivated Serum
- Crystal Retinal 6 vs Eucerin Anti-Pigment Dual Serum
- Crystal Retinal 6 vs The Ordinary Caffeine Solution 5% + EGCG Eye Serum
- Crystal Retinal 6 vs The Ordinary Multi-Peptide + HA Serum
- Crystal Retinal 6 vs The Ordinary Granactive Retinoid 2% Emulsion
- Crystal Retinal 6 vs The Ordinary Granactive Retinoid 5% in Squalane
- Crystal Retinal 6 vs Geek & Gorgeous A-Game 10
- Crystal Retinal 6 vs Celimax The Vita A Retinal Shot Tightening Booster
- Crystal Retinal 6 vs Medicube PDRN Pink Peptide Serum
- Liquid Peptides vs The Ordinary Niacinamide 10% + Zinc 1%
- Liquid Peptides vs The Ordinary Hyaluronic Acid 2% + B5 (Original Formulation)
- Liquid Peptides vs The Ordinary Hyaluronic Acid 2% + B5 (with Ceramides)
- Liquid Peptides vs CeraVe Resurfacing Retinol Serum
- Liquid Peptides vs The Ordinary Azelaic Acid Suspension 10%
- Liquid Peptides vs La Roche-Posay Hyalu B5 Suractivated Serum
- Liquid Peptides vs Eucerin Anti-Pigment Dual Serum
- Liquid Peptides vs The Ordinary Caffeine Solution 5% + EGCG Eye Serum
- Liquid Peptides vs The Ordinary Multi-Peptide + HA Serum
- Liquid Peptides vs Celimax The Vita A Retinal Shot Tightening Booster