Medik8
Crystal Retinal 10 30ml
Crystal Retinal 10 30ml
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The highest-strength Crystal Retinal available without prescription. At 0.10% retinaldehyde, Crystal Retinal 10 delivers results that push the upper boundary of over-the-counter retinoids — approaching the efficacy of clinically reviewed cosmeceutical retinoid without the same intensity of side effects. Retinaldehyde converts directly to retinoic acid in a single step, making it significantly more potent and faster-acting than conventional retinol.
What it does:
- Significant reduction in fine lines, deep wrinkles, and loss of firmness
- Visible improvement in skin laxity and dermal density
- Accelerated pigmentation correction and more even, luminous skin tone
- Refined pores and dramatically smoother skin texture
- Continued collagen stimulation for long-term structural improvement
Best for: Experienced retinoid users who have completed Crystal Retinal 6 and are ready for the highest OTC strength. Ideal for targeting advanced signs of ageing, stubborn pigmentation, and textural irregularities. If you find this insufficient, the next step is clinically reviewed cosmeceutical retinoid — available through our free written skin assessment.
How to use: Apply a pea-sized amount to clean, dry skin in the evening. Follow with moisturiser. Use on alternate nights initially if transitioning from a lower strength. Always use broad-spectrum SPF during the day.
Clinician's Note
Clinician's Note
This product has been personally reviewed and selected by our founder based on clinical evidence, ingredient efficacy, and real-world patient outcomes. If you're unsure whether this is right for your skin, start a free written skin assessment and we'll recommend the best option for you.
How to Use
How to Use
Apply as directed by the product packaging or your clinician's recommendation. For best results, use consistently as part of a complete skincare routine. Not sure about application order? Ask our clinician — it's free.
Shipping & Returns
Shipping & Returns
Dispatch: 1-2 working days
Delivery: 2-4 working days (Royal Mail tracked)
Free shipping on orders over £100
Returns: Unused, unopened products may be returned within 7 days with prior approval. Prescription items cannot be returned once dispensed.
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Complete Your CSA Routine
Retinoids work best as part of the CSA framework — add vitamin C for morning protection and SPF to shield retinoid-sensitised skin.


