Medik8 Crystal Retinal 6
Evidence-led ingredient analysis, a transparent clean score out of 100 and cleaner, effective alternatives at three price levels.
Medik8
Crystal Retinal 6
Serum · Budget: £69.00
Medik8 Crystal Retinal 6 is a well-engineered, high-performance retinoid serum utilizing 0.06% encapsulated retinaldehyde, which converts faster to retinoic acid than standard retinol with less potential for irritation. Please note: as the ingredient list was not directly provided with this request, this analysis is based on the official, standard published UK formula. The formulation is clean, effective, and transparent, featuring supportive barrier ingredients like squalane, hyaluronic acid, and cloudberry seed oil. Minor points are deducted for trace BHT used as a raw material stabilizer and potential sensitizers like coumarin from natural extracts.
Clean score out of 100
90% clean formulation · 10% customer reviews (awaiting enough reviews)
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Highly recommended for those seeking a well-formulated, intermediate-strength vitamin A treatment. Introduce slowly (1-2 times per week initially) and always pair with morning sunscreen. Avoid during pregnancy.
Be cautious if
May be a concern for highly sensitive users, pregnant or nursing individuals, or those allergic to natural vanilla/coumarin aromatics.
Against your clean standard
Yes, meets modern clean formulation standards overall with minor cautions for trace BHT and natural fragrance allergens.