
See the retinol guide
A clinical ladder by strength and tolerance. Find the right starting point for your skin — prescribed and reviewed by Dr Chris.
Consultation requiredAdvanced-strength retinol — for experienced retinol users.
Consultation requiredRetinol-led treatment — softens lines, refines texture.
Consultation requiredEntry-level retinol — evens tone, refines texture, gently builds tolerance.
Consultation requiredMid-strength retinol — accelerates renewal, refines tone and texture.

A clinical ladder by strength and tolerance. Find the right starting point for your skin — prescribed and reviewed by Dr Chris.
Consultation requiredHigher-strength stabilised 1% retinol night cream — for skin already accustomed to retinoid use, targeting visible tone, texture and lines.

Encapsulated retinol paired with polyhydroxy acid (PHA) for refined texture and even tone, with reduced sensory irritation versus standard retinol.
Consultation requiredHigh-strength night retinol — reverses signs of ageing while you sleep.
Consultation requiredMid-strength stabilised 0.5% retinol night cream — the right step up once 0.25% is well tolerated, targeting tone, texture and early lines.
VITAMIN A
Retinol is the most evidence-backed active in skincare — but the right strength matters more than the strongest. Start where your skin is, not where you wish it was. Every retinol we stock is medical-grade and doctor-selected. Use the cards below to find the right one for your tolerance, your concern and your stage.
0.25%NEW TO RETINOL
The starting point. Low-strength retinol with brightening complex — designed for skin that has never used a retinoid.
Build slowly: every third night for 2 weeks, then alternate nights, then nightly.
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0.5%READY TO STEP UP
The next rung. For clients who have tolerated 0.25% nightly for at least eight weeks and are ready for stronger results.
Step up only when 0.25% is comfortably tolerated nightly without flaking or redness.
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0.5%ANTI-AGEING FOCUS
Retinol paired with retinyl palmitate, peptides and antioxidants. Built for fine lines, crepey texture and overall skin renewal.
Best suited to clients already comfortable with a 0.25% retinol nightly.
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1%OVERNIGHT REPAIR
ZO's most concentrated retinol. Plant stem cells and barrier-supporting actives layered around 1% retinol. The premium overnight treatment.
Experienced retinol users only. Not a starting product.
View product →PIGMENTATION-LED
Surface retinol alone won't shift melasma, post-inflammatory pigmentation or sun damage at depth. The next tier — tretinoin and prescription brightening protocols — is fitted in clinic.
Prescribed by Dr Chris after assessment. Not a self-serve product.
Book consultation →REACTIVE OR SENSITIVE
If retinol has flared rosacea, stripped your barrier or caused persistent irritation, the answer isn't a milder retinol. The answer is a different active or a sequenced restoration plan.
Bakuchiol, growth factors and barrier-led routines discussed in consultation.
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