Dr Tom Walker, MBChB, is a UK-trained medical doctor and co-founder of Opti Laboratories, the successor to Mylash, which he founded in 2007. He graduated from the University of Glasgow, where he studied both medicine and anatomy, and has spent over 15 years specialising in the science of eyelash and eyebrow growth.
Dr Walker’s work focuses on evidence-based treatments for eyelash and eyebrow hypotrichosis, including cosmetic concerns and regrowth following medical conditions such as chemotherapy, radiotherapy, thyroid disease, and trichotillomania. He has Mylash and Opti Laboratories to oversee the care of thousands of patients using prescription-only and clinically supported treatments, working exclusively with UK-registered doctors and pharmacies.
His commentary and work have been featured in national and international publications including The Times and Vogue, and he is recognised for bridging clinical evidence with practical, patient-centred outcomes. Dr Walker remains closely involved in treatment development, safety review, and patient education, with a particular interest in long-term results and innovation.
Dr Walker authors many and medically reviews all educational content published by Opti Laboratories relating to eyelash and eyebrow health, including articles on chemotherapy recovery, treatments, and the latest scientific papers.
Discover which eyelash enhancers deliver real growth versus conditioning. Compare bimatoprost to peptides with clinical data and UK purchasing options.
Eyelash mite treatment must address follicle damage, not just kill mites. Learn why tea tree oil fails and how bimatoprost restores damaged lash follicles.
Discover the science behind brow growth serums — which products actually extend the growth cycle and which just condition existing hair. Evidence-based guide.
Eyebrow loss is a recognised feature of hypothyroidism. Learn why it happens, what the Queen Anne sign means, and how regrowth may be supported once thyroid levels are stabilised.
Rubbing your eyelashes or eyebrows while you sleep? Learn how trichoteiromania causes lash breakage, why it happens at night, and how to protect fragile lashes.
Finding eyelashes or eyebrows on your pillow? Learn how trichoclasis and trichorrhexis nodosa cause hair breakage — and how to protect lashes and brows overnight.
Learn why Wegovy, Ozempic and Mounjaro can cause eyelash or eyebrow thinning, what the latest research shows, and how to support healthy lash and brow regrowth.
Does Castor Oil Grow Eyelashes or Eyebrows? Evidence, Safety & Expert Tips
Opti Laboratories provides ethical eyelash and eyebrow growth products, emphasising natural beauty through scientific innovation. Their eco-friendly formulations support healthy growth while adhering to halal standards. Islamic guidance permits such products for care and beautification. Healthy lashes and brows reflect a balance of physical, nutritional, and ethical well-being.
Eyebrow Structure and Function Explained – The Science Behind Beautiful Brows