Proof over promise
Founded by two friends with a shared fixation on efficacy, simplicity and feeling well from the inside out.
Our Story
Evidence from noise
Co-founders Anthony and Joe began as research analysts, trained to separate noise from evidence. The more they looked into beauty and wellness, the clearer it became: gut health and sleep have the biggest influence on how you look and feel—yet the industry stayed fixated on surface fixes.
YLW exists to change that balance.
Approach
Our approach
We began as analysts, trained to find signal in the noise. That mindset still drives everything we do: if it works, we can prove it.
Our first prototype gave brilliant results but was far too complex. So we partnered with world-leading scientists to create something simpler—an intelligent regime that supports skin, sleep, and gut, working in sync rather than in silos.
Every decision—ingredient, dosage, sourcing—is grounded in research and independently verified on real people. No grand claims, just results that hold up.
Founders
“We built YLW because too much good science gets buried under hype or scattered across ten unnecessary steps. We wanted proof and simplicity in the same place.”
Joe & Anthony, Founders
Science
Our science
- Evidence first: every ingredient chosen from peer-reviewed, placebo-controlled studies.
- Purity verified: all materials tested in the UK or US for quality and safety.
- Results validated: each formula independently trialled on 100 people before launch.
Scientists
The scientists behind it
Professor Glenn Gibson – Food Microbiology pioneer with over 500 papers and 56,000 citations.
Daniel Whitby – Cosmetic scientist behind multiple patented technologies and 25+ years’ formulation experience.
Sophie Medlin – Leading dietitian, Chair of the BDA (London) and former King’s College lecturer.
Trusted by those who look well
Actor
Jodie Whittaker
Both are a dream for my very sensitive skin! I took the day & night supplements whilst on my last job and slept like a baby and wasn't sick once!
Presenter
Jamie Theakston
YLW has become a part of my daily routine. I love the convenience of it; no messing about with loads of supplements and multiple skin care options.
Designer
Alex Eagle
It's reassuring to have a product that has been researched and created by a team that really knows what's best. YLW helps simplify life, a great product that makes you look and feel well."
Dentist & Aesthetician
Dr. Krystyna Wilczynski
I love this Night Cream and wake up with skin that is nourished and glowing! The Day Cream sits beautifully under makeup and is super hydrating. I also love that the vitamin C doesn't cause any irritation, which a lot of vitamin C products do.
