The SkinRegime blog
Evidence-based skincare — ingredients, routines, and what actually works.
How to introduce a new active without wrecking your skin
The single most common way people wreck their skin barrier is adding too many actives too fast. Here’s the boring, effective way to introduce one — one at a time, patch tested, low and slow.
Growth factors in skincare: what they do, and how they compare to peptides, exosomes & PDRN
Growth factors are signalling proteins that tell your skin to repair and build collagen. Here’s what the evidence actually supports, how they compare to peptides, exosomes and PDRN, and where they fit in a routine.
Fungal acne (malassezia): why it’s not really acne — and how to treat it
Those tiny, itchy, look-alike bumps on your forehead, chest, or back are often not acne at all — they’re a yeast overgrowth that needs antifungals, not your usual acne routine. Here’s how to tell, and what to do.
Skin cycling: the simple 4-night routine, explained
The viral 4-night method that spaces exfoliation and retinoids apart so you get the benefits without over-exfoliating — plus how to build and check yours.
Double cleansing: do you actually need it?
Oil cleanser to dissolve SPF and makeup, then a gentle water-based cleanse — useful at night, overkill in the morning. Here’s who actually needs it.
Slugging: what it is, and who should (and shouldn’t) try it
Sealing your PM routine with an occlusive to lock in hydration — great for dry, compromised barriers, risky for acne-prone skin. Here’s the how and the who.
Skin purging vs breakout: how to tell the difference
Purging is temporary and shows up where you normally break out; a true reaction is new, spreading, or itchy. Here’s how to tell them apart — and what to do.
Skinimalism: why fewer products win in 2026
2026’s verdict: the 50-serum routine is done. Fewer, proven products — used consistently — beat a cabinet of actives.
Beta-glucan: a gentle hydrator rivaling hyaluronic acid
Beta-glucan is having a 2026 moment: deep hydration plus soothing, gentle enough for the most reactive skin.
Ectoin: the barrier-protecting ingredient trending in 2026
Ectoin — a desert-microbe molecule — is 2026’s quiet barrier hero: hydration plus environmental protection, with real research behind it.
Exosomes in skincare: hype, science, and is it worth it?
Exosomes are everywhere in 2026 — tiny “messenger” vesicles promising regeneration. The honest evidence picture.
PDRN (“salmon DNA”) skincare: what it is and does it work?
Searches for PDRN are up ~700%. Here’s what “salmon DNA” skincare actually does — and what the evidence says.
Skin longevity: 2026’s shift from anti-aging to skin health
2026’s defining trend is “skin longevity” — playing the long game with protection and barrier health over quick fixes.
PHAs: the gentlest chemical exfoliant for sensitive skin
The gentlest acids: larger molecules that exfoliate and hydrate, suited to sensitive and reactive skin.
Alpha arbutin: a gentle brightener for dark spots
A gentle, stable brightener that fades dark spots without the harshness of hydroquinone.
Tranexamic acid: a targeted fix for stubborn dark spots
A targeted brightener for stubborn discoloration and melasma — pairs well with vitamin C and niacinamide.
Panthenol (provitamin B5): the quiet barrier workhorse
Provitamin B5 — a soothing, hydrating barrier-supporter found in many of the gentlest formulas.
Squalane: the lightweight oil that suits almost everyone
A featherweight emollient that seals in moisture without clogging — suits almost every skin type.
Bakuchiol: does the “natural retinol” actually work?
A gentler, plant-based “retinol alternative” for sensitive skin — with realistic expectations.
Retinaldehyde vs retinol: which retinoid should you use?
One conversion step from active vitamin A — stronger and faster than retinol, but still over-the-counter.
Centella asiatica (Cica): the soothing ingredient for redness
A gentle, soothing botanical for redness, irritation, and barrier recovery — the “Cica” in K-beauty.
Ceramides: the lipids that hold your skin barrier together
The lipids that seal your skin barrier — essential for dry, sensitive, and over-exfoliated skin.
Peptides in skincare: do they actually work?
Signal peptides nudge skin to firm and repair — a gentle, well-tolerated supporting act, not a retinoid replacement.
Anti-aging skincare: what actually works
Sunscreen, retinoids, and vitamin C do the heavy lifting. The proven core, minus the marketing.
Glycolic vs lactic vs mandelic acid: which AHA is right for you?
Molecule size is everything: glycolic is strongest, lactic is balanced, mandelic is gentlest.
Skincare routine for sensitive skin: gentle actives that work
Fewer products, patch-testing, and barrier-first care — plus the gentlest actives that still deliver.
Skincare routine for dry skin
Hydrate with humectants, then seal with a richer cream. The two-step logic dry skin needs.
Skincare routine for oily and acne-prone skin
Control oil and clear pores without stripping. A simple AM/PM framework for oily, acne-prone skin.
How to fix over-exfoliated skin
Tight, shiny, stinging skin after ramping up acids? Stop exfoliating, go bare-bones, and let the barrier heal.
Skin barrier damage: signs and how to repair it
Stinging, flaking, sudden sensitivity? Pause actives, simplify, and rebuild with barrier-supporting ingredients.
Hyaluronic acid: how to use it (and the mistake everyone makes)
Apply to damp skin and seal with moisturiser — otherwise this humectant can pull water out of your skin.
Sunscreen guide: SPF, mineral vs chemical, and how much to apply
Broad-spectrum SPF 30+, two finger-lengths, every day. The sunscreen basics most people get wrong.
Morning vs night skincare routine: what goes where
AM is for protection, PM is for repair. The simple rule for splitting actives between day and night.
Skincare dupes: how to find a cheaper alternative that works
A good dupe matches the actives and formula that matter — not just the marketing. How to spot one (and let a tool do it).
Azelaic acid: the gentle multitasker for redness, acne and dark spots
One of the most versatile and best-tolerated actives — good for redness, breakouts, and pigmentation at once.
AHA vs BHA: which exfoliant is right for your skin?
AHAs smooth and brighten the surface; BHA clears pores. Which to pick by skin type, and how to avoid over-exfoliating.
Fading dark spots (hyperpigmentation): what actually works
Antioxidants and pigment-calmers fade marks over time — but without daily SPF, nothing sticks.
How long does skincare take to work? A realistic timeline
Most actives need 8–12 weeks. A realistic timeline by ingredient — and why tracking beats guessing.
How to build a skincare routine from scratch
Start with the three essentials, add one active at a time, and match it to your skin. The no-overwhelm framework.
Salicylic acid vs benzoyl peroxide for acne: which is right?
Salicylic acid clears pores; benzoyl peroxide kills bacteria. Which to reach for depends on the kind of acne you have.
Vitamin C in skincare: L-ascorbic acid vs derivatives
Pure L-ascorbic acid is the gold standard; derivatives are gentler. How to pick, and how to use vitamin C in the morning.
Niacinamide: what it does and who should use it
The low-drama multitasker: oil control, barrier support, and calmer skin — compatible with nearly every other active.
Retinol for beginners: how to start without wrecking your skin
Start low and slow, buffer with moisturiser, and expect a few weeks of adjustment. The beginner’s playbook for retinoids.
The correct order to apply your skincare products
Thinnest to thickest, water before oil, SPF last in the AM — the simple rules for layering, plus the exceptions.
Skincare ingredients you shouldn’t mix (and what to use instead)
The most common active-ingredient conflicts — and the simple AM/PM and alternate-night fixes that let you use them all.