The art of making sunscreen: formulation and testing

Formulating sunscreen is both an art and a science that involves much more than just including sunscreen actives in an emulsion system. Despite its appearance, the formulation is far from simple, and even experienced emulsion system developers can encounter numerous challenges during the process. It’s important for readers to understand that sunscreen formulation is a complex process that requires the skills and experience of a seasoned professional.

How does it work? 

It works by absorbing or reflecting the ultraviolet (UV) rays from the sun. There are two main types of UV rays that can damage the skin: UVA and UVB. UVA rays penetrate deeper into the skin and can cause long-term damage, while UVB rays are the primary cause of sunburn.

Sunscreens use a combination of organic and/or inorganic compounds to protect the skin. Organic compounds, also known as chemical filters, absorb UV rays and then release the energy as heat. Inorganic compounds, also known as physical filters, reflect and scatter UV rays away from the skin.

Most of them contain a combination of both types of filters. The active ingredients in sunscreen can vary, but common ones include avobenzone, octinoxate, and zinc oxide.

When applying sunscreen, it’s important to use enough to fully cover the skin and to reapply it regularly, especially after swimming or sweating. Sunscreen can help prevent skin damage and reduce the risk of skin cancer, but it’s important to remember that it’s just one part of sun protection. Other strategies include seeking shade, wearing protective clothing, and avoiding midday sun when UV rays are strongest.

Why should you use sunscreen? 

You should use sunscreen to protect your skin from the harmful effects of the sun’s ultraviolet (UV) rays. UV rays can cause sunburn, premature aging, and skin cancer. Sunscreen creates a barrier on your skin that absorbs or reflects the UV rays, preventing them from penetrating your skin and causing damage. It is recommended to use sunscreen every day, even on cloudy days, and to reapply it every two hours if you’re spending time outdoors. Additionally, it is important to use a broad-spectrum sunscreen that protects against both UVA and UVB rays, and to choose a sunscreen with an appropriate SPF level for your skin type and the intensity of sun exposure you’ll be experiencing.

The art of making sunscreen – by Sourcinglab

As a Korean cosmetics manufacturer, you are well aware of the importance of high-quality, effective skincare products. One essential product that every skincare routine should include is sunscreen. However, the art of making sunscreen is much more complex than many people realize.

Formulating sunscreen requires a combination of art and science, as it involves carefully selecting and blending a variety of ingredients to create a product that is both effective and cosmetically elegant. From choosing the right active ingredients and UV filters to determining the optimal SPF level, formulating sunscreen is a meticulous process that requires expert knowledge and skill.

When it comes to white label formulations, it’s essential to work with a partner who has extensive experience in creating high-quality products. This ensures that your customers will receive a product that is both effective and safe to use, while also meeting your brand’s specific needs and preferences.

By partnering with a trusted sunscreen manufacturer, you can create a product that reflects your brand’s unique identity, while also providing your customers with a superior skincare experience. Whether you’re looking to develop a new sunscreen formula or enhance an existing one, working with an experienced partner can help you achieve your goals and set your brand apart in a crowded market.


SourcingLab is Korea’s leading international cosmetic development services firm with access to the latest formulations in Skincare, Makeup, Hair & Body Care. Our clients range from global major corporations to well-funded startups. SourcingLab will guide you through the process from Conceptualization, Branding, and Design through Development to Production, Regulatory Compliance, and Logistics. With an International Team and a streamlined process, we will help you go to market fast and clean.

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