Achieving High SPF and PA in Sunscreen and Information on Zinc Oxide Stock

To achieve a high SPF and PA value like SPF 60 PA+++, you can utilize high-efficiency sunscreen bases or ingredients. Based on the information, products like SPF Protect Ultra™ II and SPF Protect Ultra™ III (UVA+UVB) are recommended.

• SPF Protect Ultra™ II: Using this at 15% concentration can yield SPF 50, PA++. At 30%, it can achieve SPF 90, PA++.
• SPF Protect Ultra™ III (UVA+UVB): At 20% concentration, this can provide SPF around 50. At 25%, it can provide SPF around 70-100.

Alternatively, using high-protection bases such as Fluid Extreme Sunscreen (Ultra High/Broad Protection) or Light Invisible Sunscreen (SPF50+, PA++++) can also help you achieve very high SPF and PA values, as these bases are formulated for broad-spectrum and high-level protection.

Regarding the question about high SPF values, having a high SPF (like 60 or higher) does not generally cause harm to the skin. However, SPF values above 50 offer only a marginal increase in UVB protection compared to SPF 50. The more critical factors for effective sun protection are the PA value (which indicates UVA protection) and the stability of the sunscreen formulation on the skin. Ensuring sufficient UVA protection (PA+++ or PA++++) is essential for preventing long-term skin damage.

Concerning the stock of Zinc Oxide 200nm EasyDisperse™, the previous update indicated that the product is expected to be back in stock on Monday. We apologize for any inconvenience caused by the temporary unavailability.