Short answer: the best online option is a teledermatology service that can prescribe a customized, multi‑ingredient regimen (hydroquinone or tranexamic acid + tretinoin +/− azelaic acid) plus strict sunscreen. For OTC add‑ons, choose evidence‑based serums (tranexamic acid, azelaic acid, vitamin C/cysteamine) and a high‑quality sunscreen. Specific online services and products to consider Curology (US) — custom prescription topical formulas reviewed by dermatology providers. Good because they tailor tretinoin, azelaic acid or hydroquinone to your skin type and monitor progress. Dermatica (UK / some EU countries) — focuses on hyperpigmentation and offers prescription combinations used for melasma (topical hydroquinone, tretinoin, tranexamic acid) delivered by clinicians. Apostrophe (US) — telederm platform that connects you with dermatologists who can prescribe topical or oral options and follow up. Good if you want direct dermatologist oversight. Cyspera (cysteamine cream) — an over‑the‑counter topical with growing evidence for melasma; useful if you prefer an OTC product that specifically targets stubborn pigment. The Ordinary Azelaic Acid 10% Suspension — inexpensive, evidence‑backed ingredient that reduces pigmentation and is well tolerated for many skin types. Skinceuticals Discoloration Defense or PCA Skin Pigment products — higher‑end OTC serums with tranexamic acid/kojic/niacinamide combinations shown to help dark spots. Sunscreen: La Roche‑Posay Anthelios Mineral SPF 50+ (broad‑spectrum, high UVA protection) — daily strict sun protection is essential. Why these choices Melasma responds best to combination therapy (lightening agent + retinoid + sun protection). Prescription platforms let clinicians combine stronger, evidence‑based actives (hydroquinone, tretinoin, topical tranexamic acid) safely. Several OTC actives (azelaic acid, tranexamic acid serums, cysteamine) have good data and are useful either alone or to complement prescriptions. Sunscreen is nonnegotiable — without it melasma will persist or worsen. Safety and practical notes Hydroquinone (especially >2–4%) and some procedures should be used under medical supervision to avoid complications (eg, ochronosis, rebound). Oral tranexamic acid can help but requires medical evaluation for clotting risk. Laser and intense light procedures can help some people but can also worsen melasma if done incorrectly — see an experienced pigment dermatologist in person for those. If you’re pregnant, breastfeeding, or have clotting issues, tell the provider — many treatments are contraindicated. If you want, tell me which country you’re in, whether you prefer prescription vs OTC, your skin tone (Fitzpatrick), and whether you’re pregnant or on blood thinners — I can recommend the single best next step and a specific product/service for your situation.
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