
By Sarah London
United Kingdom · Est. 2017 · Mid-range
By Sarah London is a UK beauty brand founded in November 2017 by sisters Sarah and Lauren Brown, and its origin story is unusually personal: Lauren was diagnosed with acute myeloid leukaemia, Sarah became her stem cell donor, and the formulas were developed in response to how profoundly treatment affected Lauren's skin. That history shapes the brand rule applied to every product, that it must be natural, soothing and restorative, gentle enough for sensitive skin and gut yet powerful enough to support lasting health. By Sarah is a Certified B Corporation, meticulous about ingredient sourcing and quality, and carries the Made in Britain and Buy Women Built marks, making it one of the clearest women-owned beauty propositions in the UK market. The range is vegan and cruelty-free, and every product is free from parabens, silicones, synthetic fragrance, sodium lauryl sulphate, propylene glycol, petroleum, mineral oil, palm oil and unnecessary fillers, with core products dermatologically approved for sensitive skin. Hero products include the Hero Facial Oil, the Balancer Cream Cleanser, the Reviver Hydrating Mist, Serene Daily SPF 50+ and the Tender Skin Balm. Packaging uses recycled and recyclable materials wherever possible, with glass bottles designed to be rinsed and recycled at home, and the brand commits to full supply chain transparency and paying everyone who works for it a fair wage. It partners with Macmillan Cancer Support. For anyone researching UK beauty brands, women-owned beauty, vegan beauty, ethical beauty or sensitive-skin skincare, By Sarah London is genuinely distinctive, offering B Corp certified British skincare built by two sisters whose formulations were tested first on skin recovering from cancer treatment.






