Product: Avobenzone
Rchem Avobenzone is a high-purity, oil-soluble chemical (organic) UV filter, presented as a fine, pale yellow to off-white crystalline powder. It is recognized globally as one of the most effective and broad-spectrum UVA absorbers available for sunscreen formulations. Renowned for its ability to absorb the entire range of UVA wavelengths (320-400 nm), it is a cornerstone ingredient for preventing long-term skin damage, photoaging, and providing critical protection against the deepest-penetrating rays of the sun.
Category: powder
Description
Key Features & Benefits:
● Excellent natural thickening agent with high viscosity at low concentrations
● Effective stabilizer for emulsions and suspensions in various formulations
● Clean-label ingredient suitable for organic and natural product formulations
● Improves texture and shelf life in food products
● Enhances viscosity and stability in cosmetic formulations
● Cost-effective alternative to synthetic thickeners and stabilizers
Technical Specifications Table:
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VEGAN SUITABLE
Chemical Formulae
Frequently Asked Questions:
What is the biggest challenge when formulating with Avobenzone?
The primary challenge is its photostability. When exposed to sunlight alone, Avobenzone can degrade, losing its effectiveness over time. This is why it is crucial to stabilize it in a formulation using photostabilizers like Octocrylene or specific booster systems (e.g., Diethylhexyl Syringylidene Malonate).
Yes, this is a critical consideration. Avobenzone can become highly unstable and degrade rapidly when combined with certain UV filters without a stabilizer. A key example is Octinoxate. Formulations containing both must include a robust stabilizing system to prevent this deactivation.
Is it true that Avobenzone becomes ineffective when mixed with certain other sunscreen filters?
Sun protection requires defense against both UVB (which causes sunburn) and UVA (which causes aging and deeper damage). Many UVB filters do not protect against the full UVA spectrum. Avobenzone is the workhorse UVA filter that fills this critical gap, making a sunscreen "broad-spectrum" and providing protection against long-term skin damage.
Why is Avobenzone considered so important for a good sunscreen?
This combination requires careful formulation. There is evidence that uncoated Zinc Oxide can accelerate the photodegradation of Avobenzone. Using coated Zinc Oxide and ensuring a robust stabilizing system is essential to create a stable, hybrid (chemical/mineral) broad-spectrum sunscreen.
Can Avobenzone be used in mineral-based sunscreens containing Zinc Oxide?
Store in a cool, dark, and dry place. It is a fine powder, so use standard personal protective equipment (PPE) including gloves and a dust mask when handling. It must be dissolved in the oil phase of the emulsion. Formulators must conduct rigorous testing to confirm photostability in the final formulation. Always refer to the Safety Data Sheet (SDS) for comprehensive handling and safety information.
