DEVA INSIGHTS & INDUSTRY NEWS

In 2026, with the continuous boom in global tropical tourism, island vacations, and summer outdoor sports, sunscreen sprays face extremely harsh environmental tests. For numerous brand owners seeking OEM/ODM manufacturing, a fatal pain point that is hard to detect in the lab but disastrous in real consumer scenarios is increasingly prominent: when the ambient relative humidity (RH) exceeds 80%, many conventional sunscreen sprays exhibit catastrophic performance such as "delay

I. Introduction: Navigating the "Compliance Hell" of Global Retinol Launches In the global anti-aging skincare market, Retinol and its derivatives consistently hold the throne as the "gold standard" ingredients, thanks to their irreplaceable collagen-promoting and keratinocyte-turnover capabilities. However, when numerous overseas brand owners attempt to launch a retinol-focused serum globally—achieving a simultaneous release in the US, China, and EU (Global Launch)—they ofte

I. Introduction: The Ultimate Test of Sensitive Skincare Formulation In 2026, as the global "Sensitive Skincare" market continues to expand, consumers' scrutiny of product safety has reached unprecedented levels of stringency. For domestic and international brand owners seeking OEM/ODM manufacturing, the greatest technical challenge in creating a truly qualified "sensitive skin-suitable" face cream often lies not in the addition of efficacy actives, but in the construction of

The Underlying Logic of "Safe for Sensitive Skin": How is it Defined and Validated? Before discussing the development of skincare for sensitive skin, we must first define the clinical and regulatory essence of "Sensitive Skin." In dermatology, "sensitive skin" is not a strict, independent disease diagnosis, but rather a syndrome encompassing subjective symptoms (stinging, burning, itching, tightness) and objective signs (erythema, desquamation, papules). Its core pathological

I. The Underlying Logic of "Active Preservation": How Do High-Active Ingredients "Deactivate and Collapse" in Packaging? Before discussing the development of high-efficacy skincare, we must first define the physicochemical essence of "active preservation." In the cosmetics industry, there is an axiom: "Formulation dictates the ceiling of efficacy, while packaging dictates the floor." For pure Vitamin C, retinol, peptides, highly unsaturated plant oils, and "preservative-free"

I. The Underlying Logic of Emulsion Systems: How Do They Dictate a Face Cream's "Destiny"? Before discussing face cream development, we must first define the physicochemical essence of "emulsion systems." A face cream is not a simple physical mixture of "water + oil + actives," but a thermodynamically unstable multiphase dispersion system. The choice of emulsion system (Oil-in-Water O/W, Water-in-Oil W/O, or multiple emulsions like W/O/W or O/W/O) is absolutely not just a sup

I. The Underlying Logic of Emulsion Instability: How Do Face Creams "Separate and Weep" on the Shelf? Before discussing the emulsion stability of face creams, we must first define the physicochemical essence of "phase separation and weeping." Face creams (emulsions) are inherently thermodynamically unstable systems. Oil and water form a kinetically stable dispersion under the action of emulsifiers, but their spontaneous thermodynamic tendency is to minimize the massive oil-wa

I. The "Aqueous Phase Dilemma" of High-Activity Creams: How the Water Phase Becomes a "Degradation Hotbed" Before discussing the development of high-activity face creams, we must first define the physicochemical impact of the "aqueous phase/emulsion system" on active ingredients. A face cream is essentially a water-oil emulsion system. For high-activity ingredients, the aqueous phase is not an inert carrier; rather, it is a "complex reaction pool" providing reaction media, di

The Underlying Logic of Oxidative Discoloration: How Do Face Creams "Change Color and Develop Odors"? Before discussing the stability development of face creams, we must first define the physicochemical essence of "oxidative discoloration." The discoloration and odor changes in face creams (especially those containing plant oils, natural extracts, or high-active ingredients) are absolutely not simply "product expiration." Rather, they are complex kinetic processes of lipid pe