The Skin Journal

Evidence-based skincare. Honestly written.

Guides from the DermLens AI team on what actually works in skincare — the science, the ingredients, the routines, and the things the industry would rather you not know.

Real skincare advice — for real skin, not marketing copy. The Skin Journal is where we break down what actually works, from the science behind retinol and niacinamide to honest advice on routine-building, ingredient layering, and identifying a damaged skin barrier.

Every article is grounded in dermatology research and reviewed for accuracy. We don't recommend products we wouldn't use on our own skin, and we don't write puff pieces dressed up as guides. If a popular active is overrated for most people, we'll tell you. If a £8 drugstore SPF outperforms a £60 luxury one, you'll read it here.

The articles below cover the core of a working routine — actives like retinol and niacinamide, supporting steps like hyaluronic acid and SPF, structural decisions like morning vs. evening order, and condition-specific deep dives like hormonal acne and skin barrier repair.

Latest guides

12 articles
Pregnancy-safe skincare guide
Pregnancy

Pregnancy-Safe Skincare: What to Use & Avoid

Vitamin C for beginners
Ingredients

Vitamin C for Beginners: How to Choose, Use & Layer It

Best AI skin analysis apps 2026
Comparison

Best AI Skin Analysis Apps in 2026 — Honest Comparison

How to read skincare ingredient labels
Ingredients

How to Read a Skincare Ingredient Label

Skin barrier repair
Repair

5 Signs Your Skin Barrier Is Damaged and How to Fix It

Retinol skincare guide
Ingredients

Retinol for Beginners: Everything You Need to Know

Understanding SPF
SPF

Understanding SPF: Your Complete Sun Protection Guide

Niacinamide skincare benefits
Ingredients

Niacinamide Benefits: Why Dermatologists Recommend Vitamin B3

Hormonal acne treatment guide
Acne

Hormonal Acne: Causes, Treatments, and What Actually Works

Hyaluronic acid
Ingredients

The Science Behind Hyaluronic Acid

Morning vs evening skincare
Guides

Morning vs Evening Skincare: What Goes When?

Skincare routine
Routines

How to Build a Skincare Routine for Your Skin Type

Not sure where to begin?

Where should you start?

There's no single "right" first article. Pick the path that matches where you are right now — whether you're rebuilding after over-exfoliation, starting your first proper routine, or chasing a specific concern.

If you're new

You've never had a routine

Start with the basics. The four steps every routine needs and how to layer them without overwhelming your skin.

Read: Build your routine →
If your skin is reacting

Sudden redness, stinging, peeling

Your skin barrier is probably compromised. The fix isn't more product — it's far less. Here's how to spot it and recover.

Read: Skin barrier repair →
If you want results

You're ready for actives

Retinol is the most-researched anti-ageing ingredient in skincare. Start it wrong and you'll quit in a week.

Read: Retinol for beginners →
If you struggle with acne

Hormonal breakouts on jaw + chin

Adult acne isn't the same as teenage acne and topicals alone often aren't enough. Here's what actually works.

Read: Hormonal acne guide →

Want advice that's actually personal?

These articles are general guides — useful for anyone, perfect for no one. Your skin is the result of your genetics, your age, your hormones, your environment, your diet, and the products you've used for years. Generic advice can only go so far.

DermLens AI turns a single selfie into a clinical Skin Score, a biological Skin Age, and a fully personalised AM/PM routine that audits your existing products — keeping the ones that fit and replacing the ones that don't. Three days free, no card required.

Start your free 3-day trial