Dermatology
A commercial cream that cannot combine the actives on the pad — that’s why Cambridge clinics call. We compound dermatology compounds patient-by-patient and ship from Florida.
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For dermatology practices in Cambridge, Promise Pharmacy compounds custom topicals for acne, hyperpigmentation, and post-procedure care — including hydroquinone and tretinoin combinations on a patient-specific prescription, then ships from Palm Harbor, Florida. Cambridge is a mid-size city of about 118,214 residents in Middlesex County (U.S. Census Bureau, Vintage 2023 population estimates). Fulfillment target is five business days in the pharmacy, plus 2–4 business days in transit.
Service area — shipping, not a storefront
If you practice in Cambridge, the honest version of this page is simple: we compound dermatology compounds in Palm Harbor, we are licensed to ship into Massachusetts, and we will not pretend a USPS tracking number is a local pharmacist down the street.
Cambridge has about 118,214 residents in Middlesex County (U.S. Census Bureau, Vintage 2023 population estimates). We ship here as its own destination. Typical transit after dispatch is 2–4 business days.
We do not operate a compounding bench in Cambridge. Promise Pharmacy is a 503A pharmacy at 31818 US Hwy 19 N, Palm Harbor, FL 34684. Patient-specific dermatology compounds for Cambridge are prepared there, then shipped to the clinic or the patient named on the prescription. If you need a walk-in window on Middlesex County streets, we are the wrong vendor — and we would rather say that than pretend otherwise.
Every tested batch has a Certificate of Analysis in the provider portal. If a Cambridge medical director wants the COA on file before the first patient injection, that is a normal request, not a special favor.
Cambridge is a mid-size city of about 118,214 residents in Middlesex County (U.S. Census Bureau, Vintage 2023 population estimates). Dermatology practices here usually need two ship-to patterns: the suite, and the patient who never comes in. We do both on the same account.
Amy Patel, RPh, our COO, has more than 25 years in sterile compounding. Clinical questions from Cambridge accounts go to the same compounding team — not a city-specific pharmacist we invented for this URL.
Standard compounding time is five business days. After that, Cambridge should plan on 2–4 business days in transit. If your protocol cannot survive that clock, say so on the onboarding call — expedite exists, magic does not.
Federal compounding authority for what we do is 503A of the FD&C Act (21 U.S.C. § 353a): a licensed pharmacy, a patient-specific prescription, USP compounding standards. State permission to land the package in Cambridge sits with the Massachusetts Board of Registration in Pharmacy.
Massachusetts has broad telehealth prescribing parity compared with many states, which is why video-first dermatology practices in Cambridge are a normal account type for us. Controlled substances are still federal: testosterone remains Schedule III, and Ryan Haight is not waived by a friendly state telehealth statute. For the underlying 503A vs 503B split, we keep a longer explainer on 503A vs 503B compounding rather than restating it on every city URL.
Ordering
Active Massachusetts prescribing license (and DEA if you will order controlled substances). Approval is typically within 48 hours — not instant.
Dermatology compounds are 503A. Each patient needs their own prescription in the portal.
Five business days on the Palm Harbor bench, with third-party testing on lots that require it.
Clinic or patient address. Typical transit 2–4 business days. Refrigerated compounds go insulated.
How this actually differs
This is a shipping 503A relationship with a Florida pharmacy — not a Cambridge storefront comparison.
| Promise Pharmacy (503A) | Commercial / retail | |
|---|---|---|
| Dosing | Written to the prescription, including custom strengths | Fixed commercial SKUs |
| Cambridge transit & packaging | From Palm Harbor; typical 2–4 business days; insulated when the compound needs it | Local pickup or a chain that may not compound this Rx |
| Where it is made | Palm Harbor, FL compounding bench | Factory + wholesaler |
| Account model | Credentialed provider account + named manager | Retail profile or PBM network |
| What is being filled | Patient-specific 503A compound | Manufacturer stock bottle |
| Ship-to | Clinic or patient in Cambridge | Retail counter or mail-order PBM rules |
Questions we actually get
Massachusetts compounding
These are separate programs on the same 503A account — still shipped from Palm Harbor, still not a Cambridge storefront.