How Octocrylene Enhances UV Protection and Stabilizes Sunscreen Formulas

Introduction

Octocrylene is an oil-soluble organic UVB filter and photostabilizer widely used in sunscreens and skincare products. Known for its ability to absorb UVB radiation and stabilize photolabile filters like Avobenzone, it improves sunscreen efficacy while providing lightweight, water-resistant sun protection. Its multifunctional role makes it a core ingredient in modern SPF formulations.

Product Information

• Name: Octocrylene

• Chemical Formula: C24H27NO2

• CAS Number: 6197-30-4

• Appearance: Clear, oily liquid

• Solubility: Oil-soluble; ideal for emulsified or water-resistant sunscreen systems

Key Features

• ☀️ UVB filter (280–320 nm) for sunburn prevention

• Photostabilizes Avobenzone for broad-spectrum protection

• Adds water resistance to sunscreen formulas

• Compatible with other chemical and mineral filters

• Lightweight texture suitable for daily wear

Applications

Octocrylene absorbs UVB rays and dissipates them as heat, reducing sunburn risk. It also stabilizes Avobenzone, preventing its photodegradation under sunlight, ensuring longer-lasting UVA protection.

Advantages

• Provides UVB protection and boosts SPF levels

• Acts as a stabilizer for Avobenzone, ensuring broad-spectrum efficacy

• Contributes to water-resistant sunscreen formulations

• Safe and widely approved in global markets

Limitations

• Does not provide UVA protection (used with Avobenzone or mineral filters)

• May cause sensitivity in very reactive skin types

• Environmental concerns in certain marine ecosystems

FAQs

Q: Why is Octocrylene often paired with Avobenzone?
A: Avobenzone is unstable under UV exposure; Octocrylene stabilizes it, prolonging its UVA filtering effectiveness.

Q: Is Octocrylene safe for daily use?
A: Yes, when used at regulated concentrations (typically ≤10%), it is safe and effective in sunscreens.

Q: Does it make sunscreens water-resistant?
A: Yes, it helps improve water resistance, making it ideal for sports and outdoor SPF products.

Conclusion

Octocrylene is a dual-function sunscreen ingredient that not only protects against UVB rays but also stabilizes other filters for optimal sun defense. Its water-resistant and photostabilizing properties make it indispensable in high-performance, broad-spectrum sunscreens.