Wellness · Skin health
Skin, sun and photoageing, what actually protects, what actually works.
Sunscreen and retinoids do the heavy lifting for skin ageing. Most serums do very little. Here is the evidence-based short list.
Why trust this guide
- 01
Clinically reviewed
Written by our editorial team and reviewed by a registered UK clinician before publication.
- 02
Sourced from UK and international dermatology
Every claim is checked against the British Association of Dermatologists, NICE, the American Academy of Dermatology and Cochrane reviews.
- 03
Practical, not preachy
A short list of things that actually work — no ten-step routines, no serum upsells.
Key facts
Skin, sun and photoageing at a glance.
What actually protects skin, what actually helps it age well, and what most of the industry is quietly selling you.
-
The biggest driver
UV is the largest driver of skin ageing and the leading modifiable risk for skin cancer.
-
The single biggest lever
Broad-spectrum SPF 30+ used daily on exposed skin is the single biggest lever you have.
-
The best-evidenced active
Retinoids (tretinoin, retinal, retinol) are the best-evidenced anti-ageing ingredient available.
-
Antioxidant support
Vitamin C in the morning adds antioxidant protection on top of sunscreen.
-
Most other actives are optional
The vast majority of serums and specialty actives do very little — a simple routine outperforms an elaborate one.
-
The rest still matters
Sleep, alcohol and smoking still shape how your skin ages — and how quickly.
Why this guide matters
Short list, real skin.
Skincare advice online is noisy and heavily commercial. The three points below shape everything else on this page.
-
UV is the biggest driver — full stop
Broad-spectrum SPF 30+ used daily beats every serum, mask and supplement on the market for both ageing and cancer risk.
-
Retinoids are the only real anti-ageing active
Tretinoin, retinal and retinol are the only topical actives with strong evidence for reducing lines and improving tone over months.
-
Most other things are optional
A four-step routine you actually keep up with will outperform a ten-step routine you abandon in a month.
The evidence
The steps that actually move skin outcomes.
A pragmatic order to work through — the anchors first, the fine-tuning last.
Phase 1 · Anchors
SPF, retinoid, vitamin C
Phase 2 · Checks
Specialist input, body sunscreen
Phase 3 · Fine-tune
Mole check, keep it simple
- 01
Anchors
Daily SPF 30+ broad-spectrum
On the face, ears, neck and backs of hands, every day, all year — this is the anchor of the whole routine.
- 02
Anchors
Add a retinoid at night
Start twice a week and build up. Retinal or a well-formulated retinol is a reasonable first step; tretinoin is prescription.
- 03
Anchors
Add vitamin C in the morning
A well-formulated L-ascorbic acid serum under sunscreen adds antioxidant protection with good evidence.
- 04
Checks
Address specific concerns with a dermatologist
Melasma, rosacea, stubborn acne or pigment problems benefit from a clinician-led plan rather than trial-and-error.
- 05
Checks
Body sunscreen on exposed areas year-round
The forearms, chest and back of the neck get more cumulative UV than most people realise — cover them.
- 06
Fine-tune
Annual skin mole check
A yearly professional check catches changes early — especially if you burn easily or have a family history.
- 07
Fine-tune
Simpler routine beats an elaborate one
Four steps you do every day beat ten steps you abandon after a month.
Typical timeline: three to six months to see visible change from a well-run routine.
Signs it affects you
The concerns this guide addresses.
A quick self-check across the concerns skin routines can actually help with — and the ones that need a clinician.
-
Sun-related ageing
Wrinkles, uneven tone and texture driven mostly by cumulative UV.
-
Pigmentation
Sun spots and post-inflammatory marks that darken with UV exposure.
-
Fine lines
The area retinoids and SPF address best — over months, not weeks.
-
Adult acne
Common well into the 30s and 40s — worth a proper dermatology plan.
-
Redness
Reactive, easily flushed skin — barrier care and gentle actives help.
-
Rosacea
Persistent facial redness with pustules — a medical condition, not a skincare problem.
-
Melasma
Patchy pigmentation triggered by UV and hormones — needs a careful, specialist plan.
-
Red flag: new or changing mole
Any new, changing, itching or bleeding mole warrants a dermatologist assessment.
How to do it
The short list that actually works.
Eight steps, in rough order of impact — pick the ones that fit your life and keep them up for months, not weeks.
-
Daily SPF 30+
Broad-spectrum, applied generously every morning to face, ears, neck and hands — reapply outdoors.
-
Retinoid at night
Retinal or retinol two to three nights a week to start, building up as tolerated. Tretinoin is the prescription version.
-
Vitamin C in the morning
A well-formulated antioxidant serum under sunscreen — L-ascorbic acid has the best evidence.
-
Ceramide moisturiser
Supports the skin barrier, especially when using retinoids or living in a cold climate.
-
Hyaluronic acid serum
Optional hydration step — pleasant to use, modest evidence, hard to go wrong with.
-
In-clinic peels or lasers (dermatology)
For pigmentation, texture and scarring where topicals plateau — clinician-led only.
-
Prescription tretinoin
The gold-standard anti-ageing topical — through a GP or dermatologist, with a slow ramp-up.
-
Hydroquinone for melasma (short course, specialist)
Effective for melasma when used under specialist supervision for a defined period.
What this guide is based on
The sources behind every claim on this page.
UK and international dermatology guidance, current at the time of last review.
Key references
Guidelines and standards we relied on.
A quiet reminder
This guide is for information, not medical advice.
If you notice a new or changing mole, a non-healing sore, or persistent facial redness, please see a dermatologist — early assessment is worthwhile.
-
British Association of Dermatologists. Sun awareness and skincare guidance.
-
NICE NG14. Melanoma: assessment and management.
-
American Academy of Dermatology. Skincare and sun protection recommendations.
-
Cochrane systematic reviews on sunscreen and skin cancer prevention.
Red flags
When it is not just cosmetic.
These signs suggest something worth a clinician’s eye — sunscreen and serums are not the answer.
-
New or changing mole
Any new mole in adulthood, or a change in size, shape, colour, itch or bleeding — see a dermatologist.
-
Non-healing sore > 4 weeks
A sore, ulcer or scab that has not healed after four weeks warrants assessment.
-
Sudden multiple new lesions
A sudden crop of new lesions is worth a clinician review rather than watchful waiting.
-
Skin cancer family history
A first-degree relative with melanoma raises baseline risk — annual professional checks are sensible.
-
Immunosuppression
Long-term immunosuppression sharply raises skin cancer risk — regular dermatology review is standard.
-
Fitzpatrick I-II with heavy sun exposure
Pale skin that burns easily combined with significant lifetime sun exposure needs closer surveillance.
-
Persistent facial redness with pustules
A common presentation of rosacea — a medical condition that benefits from proper treatment.
-
Chronic sun damage on scalp/ears
Rough, scaly patches on sun-exposed areas can be actinic keratoses — get them checked.
-
Post-transplant patients
Solid-organ transplant recipients are a high-risk group and should be under dermatology follow-up.
Making it stick
A steady rhythm, every day.
Four principles to keep a skin routine going long enough to actually work.
A quiet reminder
Consistency beats intensity, every time.
A four-step routine kept up for years does more than any three-week overhaul.
- 01 Anchor
Sunscreen is the whole game
If you do nothing else, use a broad-spectrum SPF 30+ every day — it outperforms every serum on the market.
- 02 Patience
Retinoids reward patience
Real change from a retinoid takes three to six months. Stopping early is the most common reason people conclude it did not work.
- 03 Simplicity
A shorter routine wins
Four steps you actually keep up with beat ten steps that fall apart by week three.
- 04 Escalation
Know when to see a specialist
For melasma, rosacea, stubborn acne or any changing mole, a dermatologist saves time and money.
Frequently asked
Everything we get asked about skin and sun.
Quick answers on sunscreen, retinoids, vitamin C, winter SPF and when to see a dermatologist.
-
What is the single most important thing for my skin?
Daily broad-spectrum SPF 30+. UV is the largest driver of skin ageing and the leading modifiable risk for skin cancer — no serum can compete with consistent sun protection.
-
Do I need a ten-step routine?
No. A simple routine — sunscreen, a retinoid, vitamin C and a moisturiser — outperforms most elaborate regimens for most people. Add anything else only for a specific problem, ideally with a dermatologist.
-
Retinol vs retinal vs tretinoin — what should I use?
Tretinoin has the strongest evidence but is prescription-only. Retinal (retinaldehyde) is a good over-the-counter middle ground. Retinol is gentler and slower. Start low and build up whichever you choose.
-
Does vitamin C actually do anything?
A well-formulated L-ascorbic acid serum offers antioxidant protection alongside sunscreen and modestly helps tone and pigmentation over months. It is one of the few serum actives with reasonable evidence.
-
Do I need sunscreen in winter or indoors?
Yes on winter days outdoors and around windows if you sit in strong daylight. UVA passes through window glass and contributes to ageing year-round.
-
When should I see a dermatologist?
For any new or changing mole, a non-healing sore, persistent facial redness, melasma, stubborn adult acne, or if you have a family history of skin cancer or are immunosuppressed.
Related content
Keep reading.
-
Skin mole check
An annual professional check catches skin cancers early.
Learn more -
Patch testing
For persistent rashes and suspected contact allergies.
Learn more -
Healthspan vs lifespan
How to think about ageing well — not just for longer.
Learn more -
All wellness topics
Explore the rest of our wellness guides.
Learn more