Collection: Anti-Ageing & Firming

Skin ageing is driven by two main factors: intrinsic ageing (natural decline in collagen and elastin production from your mid-20s onwards) and extrinsic ageing (UV exposure, pollution, smoking, and poor skincare habits). UV damage accounts for up to 80% of visible ageing — making daily SPF the single most important anti-ageing step. As collagen breaks down faster than it's replaced, skin loses firmness, fine lines deepen, and texture becomes rougher. Elastin loss is particularly difficult to reverse — Obagi's ELASTIderm range is one of the few lines specifically designed to target elastin production.

Retinoids (vitamin A derivatives) have the strongest evidence base of any anti-ageing ingredient. They increase cell turnover, stimulate collagen production, and improve skin texture, tone, and firmness. Prescription Advanced-Protocol Retinoid is the most potent form; retinaldehyde (retinal) is the most effective non-prescription option. Combined with vitamin C for antioxidant protection and daily SPF to prevent further damage, retinoids form the foundation of every evidence-based anti-ageing routine.

Both are forms of vitamin A, but they differ in potency and how your skin converts them. Retinol must go through two conversion steps to become active retinoic acid. Retinaldehyde (retinal) only requires one step — making it up to 11 times faster-acting than retinol, with comparable results to a Advanced-Protocol Retinoid for many patients. Medik8's Crystal Retinal range uses stabilised retinaldehyde, making it the strongest over-the-counter retinoid we stock. For patients seeking a premium alternative, the r-Retinoate range combines retinoid technology with additional anti-ageing actives.

With a consistent retinoid-based routine, most patients notice improvements in skin texture and tone within 4–6 weeks. Visible reduction in fine lines typically appears at 8–12 weeks. Deeper wrinkles and significant firmness improvements can take 4–6 months of sustained use. Consistency is everything — skipping your retinoid or SPF will slow results significantly.

Yes — peptides and retinoids are complementary. Retinoids accelerate cell turnover and stimulate collagen, while peptides signal further collagen and elastin production. Using a peptide serum alongside your retinoid can enhance firming and repair results. Apply peptides after your retinoid in the evening, or use them in your morning routine alongside vitamin C and SPF. Keeping skin well-hydrated also supports barrier function during active treatment — see our Obagi hydration products for options that pair well with retinoid protocols.

The over-the-counter products in this collection can be purchased directly. However, if you want Advanced-Protocol Retinoid — the most potent retinoid available — a consultation with our clinician is required. Consultations are free, take around 15 minutes, and allow us to recommend the right retinoid strength and supporting products for your skin type and goals.