Prescription skincare, examined.Research checked October 7, 2026
SKIN
FIELD GUIDE
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Pigmentation · Product research review

Agency
Dark Spot Rx reviews

Ask about the actual hydroquinone strength, any steroid component and the planned stopping or maintenance point. Stronger marketing does not define a safer course.

By The Skin Field Guide editorial · Sources checked October 7, 2026 · Not medically reviewed

Product field notes

Brand
Agency
Product
Dark Spot Rx
Formulation / access
Compounded topical
Published ingredients
Potential hydroquinone, azelaic acid, kojic acid, green tea extract, resveratrol and hydrocortisone; hydroquinone-free variants exist
Published price
$110 for 18 g; described as 60-day supply
Important detail
The page explicitly says not all formulas contain hydroquinone.

Product facts: brand’s official information ↗. Prices are the published offer, not a personal checkout quote.

The practical assessment

Questions that change the decision

Ask which kind of discoloration is being treated, whether hydroquinone or a steroid is included, and when the course should end or be reviewed. New or changing lesions deserve assessment before a fading treatment.

Context: AAD melasma guidance ↗ · FDA on compounded medicines ↗.

Compounded is a distinct category. This finished preparation is not FDA-approved. Approval or research involving an individual ingredient does not establish approval, safety or effectiveness of this exact blend.

Before starting or switching

Ask the prescriber to review allergies, pregnancy or breastfeeding, other medicines and the exact treatment area. Follow the dispensed label and seek advice for significant irritation.

  • What exact ingredients, strengths and dosage form will I receive?
  • What is the full first charge, quantity, refill schedule and cancellation policy?
  • When should treatment be reassessed, and how do I contact the clinician?

These are questions for a licensed clinician, not instructions to start, stop or change a prescription. Read the product’s complete safety information.

CoreAge Rx is placed first because it is this publication’s promoted recommendation. No head-to-head clinical testing supports a claim that it is better or safer than Agency Dark Spot Rx.

Sources & review limits

  1. withagency.com — Dark Spot Rx product information ↗
  2. fda.gov — FDA compounded-drug risks ↗
  3. aad.org — AAD clinical guidance ↗

We reviewed the public information linked above on October 7, 2026. We did not purchase or use this product, complete its medical consultation, test shipping or verify patient results. Formulas, availability and prices can change.

How we research and compare products ↗

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