CoreAge Rx Spot On
A targeted course, not an all-purpose moisturizer.
What diagnosis are we treating, and what is the plan after the initial hydroquinone course?
Explore a concern
Products in a shared category may have different indications and safety requirements. A clinician determines whether a treatment fits your diagnosis.

The concern behind the product
Melasma, marks after inflammation and other pigmented lesions can look similar in a shopping photograph. Their treatment and follow-up are not interchangeable. A dermatologist may examine the pattern and depth of discoloration and, when necessary, investigate a lesion before prescribing a fading product.
For melasma, medication is one part of a plan that also addresses sun exposure and triggers. The AAD describes hydroquinone, retinoid combinations and other options, including tranexamic acid in selected circumstances. An oral pigment medicine requires a different medical-history review from a topical cream. A higher hydroquinone percentage alone is not a reliable value or outcome measure.
The AAD gives a broad three-to-twelve-month window for melasma results, with individual variation. That is condition-level guidance, not a promise for this product or permission to use a prescription continuously for that period. The prescribed course and reassessment date remain product-specific.
The diagnosed type and location of pigmentation
Consistent photographs without filters or changing light
Irritation or new darkening around the treated area
Sun-protection habits and the agreed treatment course
Keep observations consistent rather than judging the product from a single good or bad day. Record changes in the routine as well as changes in the skin, so the prescriber can distinguish the treatment’s effect from a new cleanser, a procedure or another medicine. Bring significant or concerning symptoms to clinical attention rather than using this checklist to self-manage a reaction.
Clinical context for pigmentation ↗. Observation prompts are editorial preparation for a visit, not a validated diagnostic score.
Watch & understand
General melasma self-care from the AAD. Melasma is only one cause of discoloration; this video cannot diagnose a mark or establish that a fading prescription is suitable.
4 dermatologist tips to make melasma less noticeable
YouTube loads only after you choose “Load video.” This connects your browser to YouTube using its privacy-enhanced player. The video is educational and does not endorse this publication, this product or CoreAge Rx. Watch on YouTube ↗ · View the AAD page and written guidance ↗
A targeted course, not an all-purpose moisturizer.
What diagnosis are we treating, and what is the plan after the initial hydroquinone course?
The variant is the prescription.
Which variant is being prescribed now, and will the ingredients change on the next fill?
The oral route changes the comparison.
What makes oral tranexamic acid appropriate for me, including my clotting history and other medicines?
BOOST and BURST are different treatments.
Which peel variant is intended, and what exact preparation and aftercare instructions accompany it?
A larger treatment area needs a precise plan.
Which body areas and variant are intended, and is the supplied quantity suitable for that prescription?
An intimate-area product needs explicit boundaries.
What precise skin area may be treated, and which variant is appropriate for that area?
CoreAge Rx
Hydroquinone, kojic acid and niacinamide; confirm individual strengths
Musely
Variants include hydroquinone 6% or 12%; an HQ-free option uses azelaic acid 17% and tranexamic acid 4%. Other ingredients vary.
Musely
Tranexamic acid 225 mg in the current support-center description
Musely
BOOST lists azelaic acid 20% and tretinoin 0.01%; BURST lists hydroquinone 12% and tretinoin 0.01%. Supporting ingredients differ.
Musely
Vanish: hydroquinone 12%, tretinoin 0.01%, glycolic acid 1%; Fade omits hydroquinone and lists glycolic acid 6%. A KP variant is also documented.
Musely
Hydroquinone variants at 3%, 6% and 12%; TENDER instead lists tranexamic acid 6%. Niacinamide 2% accompanies the listed formulas.
Agency
Potential hydroquinone, azelaic acid, kojic acid, green tea extract, resveratrol and hydrocortisone; hydroquinone-free variants exist
Likeness Rx
Hydroquinone 6%, kojic acid 6% and niacinamide
Alloy
Azelaic acid 20%, niacinamide 4%, tretinoin 0.018%
Strut Health
Hydroquinone, hydrocortisone, kojic acid and tretinoin
Skin Medicinals
Hydroquinone options described at 4%, 8% and 12%; other formula details require confirmation
Nurx
Hydroquinone 4% cream
Nurx
Azelaic acid 6%, kojic acid 6%, hydroquinone 4%, hydrocortisone 1%, tretinoin 0.05%
Tri-Luma
Fluocinolone acetonide 0.01%, hydroquinone 4%, tretinoin 0.05%
No matching reviews. Try another ingredient or clear the filters.