When you hear “silk,” you might think of soft fabric, not skincare. But a powerful new ingredient called Activated Silk™ 33B-α is changing that and it all starts on the farm, with a sustainable, upcycled approach to biotech.
What Is 33B-α, and Where Does It Come From?
Activated Silk™ 33B-α is a bioactive peptide made from silk protein (INCI: Fibroin Oligopeptide-1) that’s been upcycled from silk cocoons. Instead of using wasteful or synthetic ingredients, scientists at Evolved By Nature use renewable silk in a sustainable way to create a highly effective skincare molecule.
This isn’t just biotech for the planet, it's advanced biology for your skin. 33B-α supports the skin’s natural barrier by encouraging the production of claudin-1, a key protein that helps skin cells stick together to form a tight, healthy barrier.
How 33B-α Makes Your Skin Stronger
Better Barrier Function: By boosting claudin-1, 33B-α helps lock in moisture and keeps irritants out.
Improved Hydration: It’s water-soluble and works where traditional barrier ingredients like petrolatum or ceramides can’t.
Anti-Inflammatory and Gentle: Users often see reduced redness and irritation within just a week.
Soothing and Anti-Aging: In clinical studies, it was shown to reduce fine lines and wrinkles all while being gentle on sensitive or reactive skin.
Science Meets Sustainability: From Silk Farm to Skin
What’s really special about 33B-α is its journey. The silk used for this peptide isn’t new; it comes from silk farms where cocoons are typically a byproduct of the food industry. Evolved By Nature repurposes that waste into a high-tech skincare ingredient.
Even the manufacturing is designed to be eco-friendly. The process uses water, salt, and renewable energy, and the peptide is biodegradable. Plus, unlike some barrier ingredients that feel heavy, 33B-α is non-occlusive meaning it helps without creating a greasy film.
Why This Matters for Your Skin
A healthy skin barrier is one of the most underrated parts of glowing, resilient skin. With 33B-α:
You get real, science-backed barrier support, not just a temporary fix.
Your skin is better protected, more hydrated, and less prone to irritation.
You’re using an ingredient that’s both high-performance and sustainably sourced.
How to Use It in Your Routine
Because 33B-α is water-soluble and very gentle, it can be included in a wide range of products:
As a daily serum or lightweight cream to support your barrier
In rinse-off formulas, like cleansers or body products, the peptide stays on even after washing.
As part of a post-treatment routine to help your skin regenerate
Ready to experience the difference a purified, silk-derived peptide can make?
Order 33B-α Silk™ through our website or visit us in-store.
Have questions? Email our team at wellness@prestonspharmacy.com and we’ll be happy to help you choose the right product for your skin.
