Photoaging — Concern guide

— § 01

The triggers worth tracking.

Mottled hyperpigmentation on cheeks & temples

Patchy, irregular pigment that doesn't match the symmetry of melasma. Maps to lifetime UV dose, not hormone cycles.

82%

Coarse and fine wrinkling on sun-exposed sites

The forehead, perioral, and lateral periorbital lines that read as 'older than your years' — almost always UV-driven, almost never intrinsic alone.

78%

Sallow, yellowed, leathery texture

Solar elastosis on biopsy. The skin loses its pink translucency and gains a thickened, slightly yellow cast that no moisturiser fixes.

61%

Telangiectasia and persistent erythema

Dilated superficial vessels on cheeks and nose. Often mistaken for rosacea — but the trigger is cumulative UV, not vascular reactivity.

44%

⁂

— § 02

Ingredients that actually work.

Tier

Molecule

Role

Evidence

Tier A

Mineral SPF 50+ daily

Prevention

The Australian Nambour RCT remains the reference: daily SPF reduced photoaging endpoints over 4.5 years where intermittent SPF did not.

Tier A

Tretinoin 0.025–0.05%

Reversal

Forty years of histologic and clinical evidence — the molecule that established the entire photoaging-reversal category.

Tier A

Retinol 0.3–1.0%

OTC alternative

Replicated wrinkle and pigment improvement; slower onset than tretinoin but reaches a similar destination on a 12-month timeline.

Tier A

Vitamin C 10–15% (L-ascorbic acid)

Antioxidant + collagen cofactor

Cofactor for prolyl and lysyl hydroxylase; modest visible firmness and tone improvement when paired with daily SPF.

Tier A

Hydroquinone 4% (cycled)

Pigment fade

First-line for the mottled-pigment component. Cycle 3 months on, 2 off, paired with tretinoin and SPF.

Tier A

Fractional laser (clinic)

Procedural

The procedural option that meaningfully moves dermal collagen and remodels solar elastosis. Best after a year of topical groundwork.

⁂

— § 03

The protocol.

Phase 01 · Week 1–4
Prevention first
Mineral SPF 50+ with high UVA-PF every morning, two finger-lengths. No reversal protocol works without this in place.
Phase 02 · Week 4–12
Add the retinoid
Begin tretinoin 0.025% every third night, escalating to nightly over 8 weeks. Buffer with a ceramide moisturiser sandwich.
Phase 03 · Month 4–6
Layer pigment correction
If mottled pigment is dominant, add hydroquinone 4% (cycled) or azelaic acid for the eight-week cycle. Continue tretinoin throughout.
Phase 04 · Year 1+
Procedural escalation
Once topical groundwork is established, fractional laser is the most efficient lever for dermal remodelling. Without daily SPF, the result regresses.

Bottom line

Photoaging is the only common 'aging' diagnosis with a real prevention drug. People who started SPF in their 30s do not have most of this conversation in their 60s.

The face the sun actually drew.

The triggers worth tracking.

Ingredients that actually work.

The protocol.

Prevention first

Add the retinoid

Layer pigment correction

Procedural escalation

Once a fortnight. Never a sell.

The face the sun
actually drew.