SUNJIN NEWSLETTER
ZnO-Only Innovation:
A Powerful Yet Transparent SPF50 PA++++ Sunscreen
By Jeong, Areum
Translated by Ko, Eunyoung
July 2025, NO.28
Hi, how are you?
When it comes to acne-prone or sensitive skin, what type of UV filter is the best choice?
As global interest in safe, sustainable ingredients continues to grow, there’s increasing demand for sun protection products that deliver broad-spectrum coverage, meet clean beauty and reef-safe standards, and use naturally-derived ingredients—especially Zinc Oxide (ZnO) as the sole active filter. However, the whitening (white cast) effect of ZnO has remained a technical challenge.
Today, Sunjin Beauty Science presents the solution: an innovative ZnO-only SPF50 PA++++ sunscreen formula that is as transparent as hybrid sunscreens.
This formula maximizes the benefits of a ZnO-only system while addressing the long-standing issues of white cast and poor sensory feel. At its core is Sunjin’s specialized ZnO ingredient line, the ZINA series.
Thanks to advanced surface treatment technology, our ZINA series offers the following formulation advantages:
1. Minimizing White Cast
Achieves high SPF protection while significantly reducing white cast, resulting in a more natural and satisfying finish for daily wear.
2. Excellent Dispersibility & Ease of Use
Zinc Oxide particles are evenly dispersed in the formula, enhancing transparency and long-term stability. This also improves formulation efficiency, making development easier and faster for formulators.
This ZnO-only sunscreen formula uses 24% ZINA-AS to deliver transparent yet powerful SPF50 PA++++ protection. Its outstanding dispersibility and user-friendly nature make it a perfect match for today’s evolving sun care market needs.
If you’re curious how our ZINA series can support your next-generation sun care innovation, please contact Sunjin Beauty Science today.
Areum Jeong / Regional Sales Manager
E-mail : sales1@sunjinbs.com
