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Stability of Sunscreen Agents and Formulation Adaptation Strategies

2025-06-17

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Do you know? After many sunscreen products are used in the sun for a period of time, their protective power is actually "silently disappearing". This is the "sunscreen light stability" at the cost of it.

Certain chemical sunscreens are prone to decomposition under ultraviolet rays, resulting in a decrease in protective efficacy and may even produce irritating by-products. To solve this problem, the formulator is not just "pile the materials", but should "match" scientifically!

SUZHOU SUNLAND PHARMATECH CO., LTD.has been long focusing on the research and development of sunscreen raw materials, and is well aware of the importance of sunscreen stability in product development.Whether it is chemical sunscreens such as Avobenzone and Octinoxate, or physical sunscreens such as titanium dioxide and zinc oxide, if the stability is insufficient, it will affect the sunscreen effect, formula appearance and even product safety.

In response to this challenge, Sunland Pharmaceutical started from molecular structure design and developed a variety of sunscreen agents with high photostability. It also provided coated physical powders to significantly improve system compatibility and skin feel performance.Sunland has extensive experience in formula adaptation and can recommend appropriate oil phases, emulsification systems and solubilization methods based on the polarity, photosensitivity and usage concentration of different sunscreens to ensure stable distribution of active ingredients in the system and long-lasting performance.

In addition, Sunland also provides a number of formulation technical services, including photostability testing, compatibility verification and international regulatory guidance, to help customers solve practical problems such as discoloration, delamination, and irritation of finished products. 

Focusing on the cosmetic raw material industry, the market in the sunscreen field is still huge. Sunland will be committed to providing global partners with safe, efficient, differentiated sunscreen raw materials and customized technical support, helping customers create internationally competitive sunscreen and skin care products.