Medik8 - Medik8 Crystal Retinal 24

The Ultimate Vitamin A Serum – Ultra-Strength Retinal Technology

Take your skincare to the highest level with Medik8 Crystal Retinal 24 — an expert-strength vitamin A night serum designed to visibly reduce deep wrinkles, improve firmness, and dramatically refine skin texture.

Powered by retinaldehyde (retinal), this next-generation form of vitamin A works up to 11x faster than traditional retinol, delivering faster, more visible results without unnecessary irritation. Retinal requires only one conversion step to become retinoic acid in the skin, making it significantly more effective than standard retinol.

Not suitable for beginners to vitamin A. This formula is designed for experienced users upgrading from Crystal Retinal 10 or equivalent.

Why Crystal Retinal 24 Is Different

• Targets deep lines and wrinkles
• Improves skin firmness and elasticity
• Brightens dark spots and uneven tone
• Helps decongest pores and refine texture
• Stabilised delivery system maintains potency from first use to last drop

Key Ingredients

• 0.24% Retinal (Retinaldehyde) — Fast-acting vitamin A for visible anti-ageing, working up to 11x faster than retinol.
• Encapsulation Technology — Enhances stability and reduces irritation.
• Antibacterial Properties — Helps support clearer-looking skin.

Clinical Results

• Visible wrinkle reduction in as little as 7 days
• Brighter, smoother, more even-looking skin
• Improved clarity and reduced congestion
• Firmer, more youthful-looking complexion

Who Is It For?

• Experienced vitamin A users (Crystal Retinal 10+ users upgrading)
• Ageing skin with visible lines and loss of firmness
• Uneven skin tone, pigmentation, or dullness
• Those wanting maximum-strength retinal results without prescription treatments

How to Use

1. Apply in the evening after cleansing.
2. Use 1–2 pumps across face and neck.
3. Follow with moisturiser.
4. Always apply SPF during the day.

Start gradually if moving up in strength — begin 2–3 nights per week and increase as tolerated.

Frequently Asked Questions

Is Crystal Retinal 24 suitable for beginners?

No — this is an ultra-high strength formula for experienced vitamin A users only. If you are new to retinoids, start with a lower concentration such as Crystal Retinal 1 or 3 and build up gradually.

How is retinal different from retinol?

Retinal (retinaldehyde) requires only one conversion step to become active retinoic acid in the skin, whereas retinol requires two. This makes retinal up to 11x faster-acting than retinol, delivering quicker and more significant results.

When will I see results?

Visible improvements can appear in as little as 7 days. Significant anti-ageing and brightening results typically develop over 8–12 weeks of consistent use.

Will it cause irritation or peeling?

Some dryness or peeling may occur as your skin adjusts, particularly in the first 2–4 weeks. Starting with less frequent application and using a gentle moisturiser can help manage this.

Do I need to use SPF?

Yes — daily broad-spectrum SPF is essential when using any vitamin A product, as retinoids increase sun sensitivity.

Can I use Crystal Retinal 24 with other actives?

Apply Crystal Retinal 24 in the evening only. Avoid combining with other retinoids or strong exfoliating acids on the same night. Vitamin C can be used in the morning routine.