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.
Looking for a UK lash serum? Learn the difference between cosmetic lash serums and prescription-strength growth treatments, and what actually works.
Eyebrow loss from chemotherapy is common but recovery is possible. Learn why it happens, how regrowth works, and what treatments can help restore your brows.
Looking for a UK lash serum? Learn the difference between cosmetic lash serums and prescription-strength growth treatments, and what actually works.
Learn when to apply brow serum after lamination, the difference between growth and conditioning serums, and how to protect your investment for maximum results.
Hypothyroidism eyebrows explained: why the outer third of the brow can thin, what Queen Anne sign means, and how to support eyebrow regrowth.
Lash growth serums extend hair follicle growth phase through prostaglandin analogues. 25% length increase vs 3% conditioning. Doctor-led clinical protocols.
Discover the best eye mask after blepharoplasty. Learn how to protect healing eyelids, avoid pressure, and improve recovery with a clinically designed, pressure-free sleep mask.
Lash lift serums condition existing lashes but don’t stimulate growth. Learn why you should protect your lash lift + tint from UV rays.
Discover the science behind brow growth serums. Clinical evidence shows only pharmaceutical treatments extend growth cycles. Learn what conditioning vs real growth means.
Eye masks for lash extensions prevent premature fallout. Learn which design features protect extensions and how to choose the right fabric.