Before-and-after images can be affected by lighting, styling, hair length, camera angle, timing, and selective reporting. They are not a substitute for a controlled comparison.
Ask five questions
- Is the product claiming cosmetic improvement or treatment of hair loss?
- What exact ingredient and finished formulation were studied?
- Were people randomly assigned to treatment and comparison groups?
- Was hair change measured objectively and for long enough?
- Does the product carry the authorization expected for its claims?
Health Canada explains that a beauty or grooming product may be legally classified as a drug when it claims to modify body functions or prevent or treat disease. Treat the wording on the label as evidence about the regulatory question, not as evidence that the promise is true.
Source: Health Canada: What is a cosmetic?.
Evidence companion: For molecule-specific evidence and Canadian authorization reporting, consult PeptideInfo.ca.
General education only. Reviewed against the linked sources; not individualized medical advice.