THE SOURCE MATERIAL
Read the originals.
Public information checked September 24, 2026. Each source has a defined role and a limit.
SOURCE 01
CoreAge Rx — Spot On ↗
Commercial source for hydroquinone, kojic acid, niacinamide, and the $54.99 starting monthly offer. Exact concentrations were not confirmed.
SOURCE 02
Musely — The Spot Cream ↗
Commercial source for the $36 monthly equivalent, two-month supply, and customized prescription. Outcomes on the page are self-reported.
SOURCE 03
Dermatica — Melasma treatment ↗
Provider description of personalized formulas and possible active ingredients. The listed ingredients are not a guaranteed prescription.
SOURCE 04
Dermatica — US pricing ↗
Advertises $29.95 per bottle and $59.90 every two months, with free shipping. Delivery is also described as every 56 days; confirm the actual billing date.
SOURCE 05
Agency Skin — Dark Spot Rx ↗
Current destination of the former withagency.com product page. $110, 18 g, 60-day supply. Not all formulas contain hydroquinone.
SOURCE 06
Agency Skin — Pricing and products ↗
Provider help page for subscription pricing and combination discounts. Confirm the order-specific terms.
SOURCE 07
American Academy of Dermatology — Melasma diagnosis and treatment ↗
Medical guidance on diagnosis, treatment options, and sun protection. It does not endorse the commercial order used here.
SOURCE 08
American Academy of Dermatology — Fading dark spots in darker skin tones ↗
Explains causes of pigmentation, avoiding irritation, and the role of sun protection.
SOURCE 09
American Academy of Dermatology — Age spot treatment ↗
Advises assessment before treating presumed age spots because other lesions can resemble them.
SOURCE 10
American Academy of Dermatology — Melasma self-care ↗
Guidance on daily protection, visible light, tinted sunscreen, and avoiding irritating products.
SOURCE 11
FDA — Skin product safety ↗
US regulatory and safety context: hydroquinone skin-lightening products are not approved for OTC sale; adverse effects can include lasting discoloration.
SOURCE 12
FDA — Understanding the risks of compounded drugs ↗
Compounded preparations are not FDA approved and do not receive the finished-product premarket review used for approved drugs.
SOURCE 13
DailyMed — TRI-LUMA prescribing information ↗
Product-specific label for short-term treatment of moderate-to-severe facial melasma with sun-avoidance measures. Not evidence for every hydroquinone mixture.