What did @sarahbaker__ actually say?
In a 271K-view TikTok, @sarahbaker__ walked viewers through her second week of compounded semaglutide from Mochi Health. She described drawing up the dose using units marked on the syringe, cleaning the injection site, and alternating between her stomach and arm. Her summary: "easy peasy lemon squeezy."
The video is light on medical detail, which is both its appeal and its problem. She doesn't mention dose, side effects, or the fact that compounded semaglutide carries regulatory baggage that brand-name versions don't. For 271,000 viewers, some of whom are almost certainly considering this drug, that omission matters. To her credit, she does say "your doctor prescribes" the units, which at least frames this as a supervised process.
Does the science back this up?
The injection technique she describes is broadly consistent with standard subcutaneous injection practice. That part checks out. Semaglutide is administered subcutaneously, and rotating injection sites, including the abdomen and upper arm, is standard guidance supported by the drug's prescribing information and common clinical practice.
What's less clear is whether compounded semaglutide delivers what brand-name semaglutide does. The FDA does not approve compounded drugs, and it has warned explicitly that compounded semaglutide products have not been shown to be safe or effective. A 2023 FDA alert noted reports of hospitalizations tied to dosing errors with compounded semaglutide, partly because patients were drawing doses in units rather than milligrams, which creates real confusion. The STEP trials (Wilding et al., 2021, New England Journal of Medicine) that established semaglutide's efficacy used the commercially manufactured Novo Nordisk formulation, not compounded versions. Assuming identical outcomes is a leap the evidence doesn't support.
What did they get wrong (or right)?
The injection rotation advice is right. Alternating between the stomach and arm reduces the risk of lipohypertrophy, which is localized fat buildup from repeated injections in the same spot. That's real guidance.
What she gets wrong, or at least dangerously incomplete on, is the framing of compounded semaglutide as a routine, breezy experience. Drawing doses in "units" is where things get risky. Unlike insulin, where units are a standardized measurement tied to a specific concentration, compounded semaglutide vials can vary in concentration between compounding pharmacies. The FDA flagged this exact issue in 2023, noting that patients and providers were confusing units with milligrams and administering doses up to 10 times too high or too low. "Measuring out the units your doctor prescribes" sounds simple, but it assumes the viewer's vial has the same concentration as hers, which it may not.
- Site rotation: accurate and good advice
- Doctor-supervised dosing: correctly noted
- Framing compounded semaglutide as equivalent to Ozempic or Wegovy: not stated directly but strongly implied
- Dose-in-units language: potentially dangerous without concentration context
What should you actually know?
Compounded semaglutide exists in a legal and medical grey zone that this video does nothing to acknowledge. The FDA placed compounded semaglutide on its shortage list, which temporarily allowed compounding pharmacies to produce it legally. As of early 2025, the FDA declared the shortage resolved, which means many compounding pharmacies can no longer legally produce it. Patients currently using it from companies like Mochi Health are navigating an actively shifting regulatory situation.
That doesn't mean everyone on compounded semaglutide is in danger. But it does mean that a 60-second "come take my injection with me" video is not an appropriate vehicle for introducing people to this drug. The SURMOUNT and STEP trial data are strong for the approved drugs. The compounded versions have no equivalent evidence base, and the concentration variability problem is a documented safety issue, not a theoretical one.
If you are considering compounded semaglutide, get clarity from your prescriber on the exact concentration in your vial in mg/mL, not just the units. Confirm your pharmacy's accreditation. And understand that what works for someone on TikTok may not reflect your formulation, your dose, or your health history.
The bottom line
@sarahbaker__ is sharing a personal experience, not giving medical advice, and her injection technique is largely sound. But the casual framing of compounded semaglutide as interchangeable with brand-name versions, combined with dose-in-units language that the FDA has specifically identified as a source of serious dosing errors, makes this video more misleading than helpful for anyone using it as a starting point. Give credit where it's due, but don't let the cheerful tone substitute for the context this drug actually requires.