How To Control Oily Skin: A Complete Guide
Discover how to control oily skin with a science-based routine: pH-balanced gel cleanser, leave-on BHA (0.5–2%), niacinamide (2–5%) + zinc PCA, lightweight gel-cream, and dry-touch SPF 30/50. Learn non-greasy SPF picks, safe exfoliation, mattifying formats, and a 14-day reset.
Best Toners For Dry Skin: A Scientific Guide
Looking for the best toners for dry skin? Discover what makes a toner dry-skin friendly, which humectants (glycerin, HA, urea) actually hydrate, how lipids and soothing agents help, why alcohol-free matters, ideal pH ranges, and smart layering with serums, creams, and sunscreen.
What Is The Skin Barrier: Structure, Function, And Why Brands Should Care
Discover what the skin barrier is and how it works. Explore damage signs, repair timelines, and top actives (ceramides, niacinamide, PHAs). Learn how pH and surfactants impact TEWL, why microbiome strategies matter, and which formats and packaging perform.
Top 15 Products To Unclog Pores: A Complete Guide
Top 15 products to unclog pores: compare BHA toners, retinoids, clay/charcoal masks, BPO washes and smart cleansers—plus actives, formats and best skin types. Learn AM/PM routines, pairing rules, and mistakes to avoid, with private-label tips from Zerun Cosmetic.
Types Of Acne: Private-Label Guide For Actives, Concentrations, Ph, Claims
Map comedonal, inflammatory, nodulocystic & hormonal patterns to proven actives, concentrations, and pH. Learn BHA/BPO/retinoid/azelaic ranges, compliant claims, and routine frameworks that cut returns—built for brands and consumers by Zerun Cosmetic.
Reef Safe Sunscreen Brands: Private-Label Guide For Clean, Ocean-Friendly Lines
Reef safe sunscreen brands: Learn what “reef safe” really means, which non-nano zinc/titanium filters to choose, how to test & label (SPF/UVA/water-resistant), and which packaging is ocean-friendly. Private-label guide from Zerun Cosmetic with low MOQs, free design, and global compliance.
Can I Use Niacinamide With Vitamin C: The Ultimate Guide
Can I use niacinamide with vitamin C? Yes—learn how to layer L-ascorbic or derivatives with 3–5% niacinamide, ideal concentrations, AM/PM order, and storage to prevent oxidation. A practical, science-based guide for consumers and private-label brands.
Mens Skincare Routine Oily Skin: Best Actives And How To Layer
Mens skincare routine oily skin: Learn the best AM/PM layering for shine control and acne prevention—cleansing cadence, salicylic acid vs. niacinamide, zinc PCA, retinoid rotation, and matte SPF. Practical steps for consumers and private-label brands from Zerun Cosmetic.
Best Eye Cream For Wrinkles: The Ultimate Guide
Discover the best eye cream for wrinkles with proven actives like retinol, peptides, and hyaluronic acid. Learn how to choose, apply, and customize OEM/ODM formulas with Zerun Cosmetic for global markets.
What Are Serums For: A Complete Guide
Discover what serums are for, how they differ from moisturizers, and which actives target hydration, acne, or aging. Learn layering, timing, packaging, and private-label options for your skincare brand.
When Was Sunscreen Invented: A Complete Guide
Discover when sunscreen was invented and how it evolved from ancient oils to today’s broad-spectrum SPF. Explore history, pioneers, SPF ratings, regulations, and R&D. Partner with Zerun Cosmetic for custom sun-care solutions.
How To Use Conditioner: The Ultimate Guide
Discover how to use conditioner for maximum results. Learn types, ingredients, pH, routines, and sustainability tips in this ultimate guide. OEM/ODM buyers can explore custom solutions with Zerun Cosmetic.