Musely is a prescription skincare brand that allows consumers to order custom dermatologist-formulated treatments online. The brand sells a variety of treatments, from anti-aging to dark spot correction to hair growth, and claims more than one million patients have used their service.
But what does "prescription skincare" actually mean now that hydroquinone is no longer legally available over the counter? Does Musely use ingredients proven to be effective? Does the brand use any unhealthy additives? And is Musely better or worse than other prescription skincare brands like Curology?
In this article, we'll answer all of these questions and more, as we analyze the ingredients in two of Musely's most popular treatments, The Spot Cream and The Anti-Aging Cream, to give our take on whether or not they're likely to be effective, and whether or not they're healthy.
We'll also review documented side effect risks of long-term hydroquinone use, compare Musely to other popular skincare brands, and share our updated take on the brand now that ingredient transparency has improved.
Key takeaways:
- Research-backed prescription-strength active ingredients
- Contains inactive ingredients we consider unhealthy
- We do not currently recommend Musely
The Spot Cream Ingredient Analysis
The Spot Cream is sold in four formulations (Erase, Nurture, HQ Free, and M+).
The active ingredients in M+ are shown below:
image source: https://www.musely.com/
Hydroquinone at 12% is the core active ingredient in the M+ formulation.
A medical review published in the Journal of the European Academy of Dermatology and Venereology described hydroquinone as "one of the most effective molecules for the treatment of hyperpigmentary disorders."
Tretinoin at 0.05% is a vitamin A derivative that is clinically shown in a medical review in the Clinical Interventions in Aging journal to decrease wrinkles, decrease hyperpigmentation, and increase collagen deposition.
Kojic acid at 6% is used to lighten hyperpigmented skin, and is commonly paired with hydroquinone in compounded formulations to enhance the depigmenting effect.
Niacinamide at 2% was clinically shown in a 2002 trial to be an effective skin-lightening compound, and we consider it to also have an anti-aging effect, as we discussed in our Curology reviews article on another popular prescription skincare brand.
The inactive ingredient list, shown below, includes several compounds we consider unhealthy:
image source: https://www.musely.com/
Butylated hydroxytoluene (BHT) is a synthetic preservative we recommend avoiding due to evidence of endocrine-disrupting and tumor-promoting effects in animal models.
Cyclopentasiloxane and cyclohexasiloxane are compounds that the European Union restricted in 2020 due to environmental persistence and bioaccumulation concerns.
Health Canada classifies these compounds as toxic.
PEG-75 stearate may be contaminated with 1,4-dioxane (a probable human carcinogen) during the ethoxylation process, depending on manufacturer purification practices.
Overall, we consider The Spot Cream highly likely to be effective for correcting dark spots, but we don't currently recommend it due to the inactive ingredients highlighted above.
Is Prescription Skincare Superior?
Most skincare products are available over the counter (OTC), which means consumers can purchase them without a prescription.
Musely's branding centers on the idea that "prescription skincare" delivers more potent results than OTC formulations. There is some truth to this framing, but it's narrower than the marketing suggests.
Hydroquinone, the most well-studied skin-lightening molecule, is no longer legally available in OTC products in the United States.
As part of the CARES Act effective in 2020, OTC skin-lightening products containing hydroquinone are now considered new drugs that require an FDA-approved new drug application to be legally marketed, per published FDA guidance.
For non-hydroquinone skincare ingredients, however, prescription is not required for efficacy.
Hyaluronic acid was described as a "skin rejuvenating biomedicine" in a 2018 medical review published in the European Journal of Pharmaceutical Sciences, due to its ability to significantly reduce the appearance of wrinkles.
This ingredient is freely available OTC.
Prescription skincare is the only legal route for hydroquinone in the US, but for most other anti-aging actives, OTC products are equally or more thoroughly studied.
Whether a specific product is effective depends on the formulation, not on the prescription label.
Does Musely Cause Side Effects?
Musely's prescription formulations have not been independently evaluated in clinical trials at the time of updating this article. We assess potential side effects by examining the published clinical research on the active ingredients themselves.
Hydroquinone use is associated with exogenous ochronosis, a permanent blue-black or gray-blue discoloration of the skin.
A systematic review published in the International Journal of Dermatology reported that ochronosis was most frequently associated with hydroquinone concentrations above 4% and treatment durations longer than three months, with elevated risk in individuals with Fitzpatrick skin types V and VI.
The M+ and Erase formulations of The Spot Cream contain hydroquinone at 12%, well above the 4% threshold flagged in that review.
We urge consumers using these formulations to discuss appropriate treatment duration and breaks with their prescribing dermatologist.
Tretinoin commonly causes transient skin irritation, peeling, dryness, and increased sun sensitivity, particularly during the initial weeks of use. These effects are generally well-tolerated and dose-dependent.
For healthy adults using Musely's prescription formulations under physician supervision, the most concerning long-term risk in our opinion is ochronosis from extended high-concentration hydroquinone use.
The Anti-Aging Cream Ingredient Analysis
The active ingredients in the Balanced formulation of Musely The Anti-Aging Cream are shown below:
image source: https://www.musely.com/
Tretinoin at 0.05% is the core active ingredient.
A medical review published in the Clinical Interventions in Aging journal found tretinoin to be the most effective retinoid for skin aging, with documented reductions in wrinkles and hyperpigmentation alongside increased collagen deposition.
Hyaluronic acid at 0.5% is clinically shown to improve skin hydration, smoothness, plumping, and the appearance of fine lines and wrinkles.
It is effective even at concentrations as low as 0.1%, as we documented in our Plexaderm review article.
Niacinamide at 4% is the final active ingredient, and we consider this dose to be effective for anti-aging, smoothness, and pore appearance.
The inactive ingredients in this formulation are shown below:
image source: https://www.musely.com/
The same inactive ingredients we highlighted as potentially concerning (BHT, cyclopentasiloxane and cyclohexasiloxane) in the previous Ingredient Analysis section exist here too.
Overall, we consider The Anti-Aging Cream highly likely to be effective for reducing fine lines and wrinkles, but we don't currently recommend it due to the inactive ingredients.
Improved Ingredient Transparency
When we first published this article, Musely did not clearly disclose the inactive ingredients used in their compounded formulations.
We considered that lack of transparency to be a consumer safety issue.
Musely has since published a complete inactive ingredient list for every prescription treatment in their Help Center, as documented below:
image source: https://www.musely.com/
This is a meaningful improvement for consumer health and safety.
Consumers can now make informed decisions about whether they're comfortable with each ingredient in a Musely formulation before initiating a prescription.
Our updated verdict on the formulations is grounded in the now-disclosed full ingredient list, rather than in the previous absence of disclosure.
Musely vs. Popular Skincare Brands
Here's how Musely compares to other popular skincare brands in terms of formulation quality, in our opinion:
Curology
Another telehealth prescription skincare brand offering custom-compounded formulations.
Like Musely, Curology's compounding base contains synthetic preservatives and silicones we consider unhealthy.
Curology's standard formulations typically use lower-concentration hydroquinone or non-hydroquinone alternatives, which is clinically shown to carry lower ochronosis risk than the 12% hydroquinone in Musely's M+ and Erase formulations.
Curology wins from a potential efficacy and side-effect profile perspective.
Winner: Curology
Tri-Luma
The only FDA-approved prescription hydroquinone product currently on the U.S. market, manufactured by Galderma.
The formulation pairs hydroquinone 4%, tretinoin 0.05%, and fluocinolone acetonide 0.01%, and has been independently evaluated in published clinical trials, as we documented in our Incellderm reviews article on a different luxury skincare brand.
Tri-Luma's hydroquinone concentration is at the 4% threshold below which ochronosis risk is meaningfully reduced.
Winner: Tri-Luma
Incellderm
A Korean luxury skincare brand with extensive ingredient lists that contain no compounds we consider unhealthy.
While Incellderm does not contain prescription-strength actives like hydroquinone or tretinoin, the formulations are entirely free of the silicone, BHT, and PEG concerns present in Musely's compounding base.
Winner: Incellderm
Our Clean Skincare Pick
MindBodyGreen Best Skin+ is our top anti-aging skin supplement.
It contains orange extract which is clinically shown to increase skin moisturization, skin elasticity and skin radiance.
This supplement also contains astaxanthin which is clinically shown to cause "wrinkle formation reduction."
This supplement is free of ingredients that we consider to be unhealthy.
Musely Pros and Cons
Pros:
- Research-backed prescription-strength actives
- The Spot Cream should correct hyperpigmentation
- The Anti-Aging Cream should reduce wrinkles
- Inactive ingredients now publicly disclosed
- Board-certified dermatologists oversee prescriptions
Cons:
- Some formulations contain BHT
- Some formulations contain cyclopentasiloxane
- Some formulations contain cyclohexasiloxane
- Some formulations contain PEG-75 stearate
- 12% hydroquinone may cause side effects
- Compounded formulations don't appear to have been clinically tested
- Less healthy than some competitors
