
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.
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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.

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.

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.

Discover the differences between cleansers vs face washes. Learn which suits oily, dry, or sensitive skin, how pH and ingredients matter, and explore sustainable OEM/ODM options with Zerun Cosmetic for your brand

You’ve seen those Instagram reels showing a luscious avocado‑honey DIY mask, and you’ve eyed the sleek jars of lab‑tested clay masks at the drugstore. But which truly gives you that glow without irritation or wasted time?

The top sunscreen manufacturers, such as Zerun Cosmetic, Neutrogena, La Roche-Posay, and Supergoop!, offer superior formulations, extensive product ranges, and reliable industry compliance, ensuring your customers receive exceptional protection and skin care.

Looking for real-world performance from la roche posay sunscreen? This expert guide explains Anthelios filters (Mexoryl, avobenzone), finish by skin type, white-cast tips, application rules, reef-safety, and drawbacks—so you can choose, apply, and reapply with confidence.

Discover the best face moisturizer for oily skin with our expert guide. Learn the right ingredients, textures, and routines—plus SPF tips—to hydrate without shine, avoid clogged pores, and build a balanced, matte finish. Ideal for daily use and B2B product development.

Looking for the best lip serum for dry, chapped lips? Learn which humectants, ceramides, and soothing agents actually work, how to layer with balm, what to avoid if you’re sensitive, and how to test a formula—plus packaging tips for long-term lip health.
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We will contact you within 24 Hours, please pay attention to the email with the suffix“@zrwcosmetic.com”.
Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right valve you want.
For first-time customers, we will send you a free sample to choose.Once you have confirmed the formula、ingredient、dimensions、weight and packaging design, our factory will make a free sample proofing for you.
For customers who frequently cooperate with us, we will send new products sample free of charge several times a year.
Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right valve you want.
For first-time customers, we will send you a free sample to choose.Once you have confirmed the formula、ingredient、dimensions、weight and packaging design, our factory will make a free sample proofing for you.
For customers who frequently cooperate with us, we will send new products sample free of charge several times a year.
We will contact you within 24 Hours, please pay attention to the email with the suffix“@zrwcosmetic.com”.