Skinup

Blog

Guides and updates to take care of your skin with more clarity.

RoutineFeatured

How to Repair a Damaged Skin Barrier: The Routine That Actually Works

Stinging, tight, flaky skin? Here's how to tell if your barrier is damaged, and the simple 3-step routine dermatologists recommend to repair it.

ReviewsJul 18, 2026

What r/SkincareAddiction Actually Recommends in 2026: The Real Holy-Grail List

CeraVe, The Ordinary, and Paula's Choice dominate r/SkincareAddiction's holy-grail threads — but the community itself says results vary by skin type.

IngredientsJul 18, 2026

Azelaic Acid Explained: What the Percentage on the Label Actually Means

Azelaic acid comes in three real strengths — 10% OTC, 15% Rx Finacea, 20% Rx Azelex — and each answers to different rules. Here's what it means.

Skin ConcernsJul 14, 2026

Fungal Acne Isn't Actually Acne: The Malassezia Myth That Makes Breakouts Worse

Fungal acne isn't acne, it's Malassezia folliculitis. Learn to spot the difference and avoid the treatment mistakes that make it worse.

ReviewsJul 11, 2026

CeraVe vs Cetaphil: Which One Actually Fits Your Skin? (Cleanser, Moisturizer & Sunscreen, 2026)

CeraVe vs Cetaphil compared by category (cleanser, moisturizer, sunscreen) with USD prices, objective criteria, and the fungal-acne wrinkle most guides skip.

RoutineJul 06, 2026

Slugging: Does It Actually Work, and Who Should Skip It?

Slugging seals in moisture, it doesn't add it. Here's who a petroleum jelly seal actually helps, who should skip it, and the 2 myths worth retiring.

Skin ConcernsJul 02, 2026

How to Spot Counterfeit Skincare: 7 Signs Even Regulars Miss

Counterfeit skincare rarely looks fake. Here are 7 real signs, how to check a batch code, and what US cosmetics regulation actually covers.

ReviewsJun 26, 2026

Best Vitamin C Serums for 2026: 10 Picks Ranked by Skin Type (Plus the Affordable C E Ferulic Dupes Worth Buying)

The best vitamin C serums for 2026, ranked by skin type — plus the affordable SkinCeuticals C E Ferulic dupes actually worth buying.

IngredientsJun 24, 2026

What Does Non-Comedogenic Really Mean? The Honest Answer (and How to Check Your Products)

Non-comedogenic has no FDA definition. Here's what the rating scale means, which ingredients to watch for, and how to check any skincare product.

Skin ConcernsJun 22, 2026

Skin Purging vs. Breakout: How to Tell the Difference (and What to Do)

Purging or breakout? Tell them apart by trigger, timeline, and location — which actives cause purging, how long it lasts, and what to do about it.

ReviewsJun 19, 2026

Best Mineral Sunscreens for Your Face in 2026: 10 Picks by Skin Type

The 10 best mineral sunscreens for your face in 2026, ranked by skin type and white cast — zinc oxide picks from CeraVe, La Roche-Posay, EltaMD and more.

IngredientsJun 17, 2026

Skincare Ingredients You Shouldn't Mix: The Real Conflicts (and the Myths to Ignore)

The real list of skincare actives you shouldn't mix at once is short. Here are the genuine conflicts, the myths to ignore, and how to layer safely.

RoutineJun 15, 2026

Skin Cycling: The 4-Night Routine That Actually Works (and Who Should Skip It)

Skin cycling is a dermatologist-created 4-night routine: exfoliate, retinoid, then recover. Here's how it works, who it helps, and who should skip it.

IngredientsJun 09, 2026

Fungal Acne Safe Ingredients: How to Read Any Label

Fungal Acne Safe Ingredients: How to Read Any Label TL;DR: "Fungal acne safe ingredients" are ones that don't feed Malassezia , the yeast behind so called...