Before-and-after Instagram post with the client's written consent

After a visible transformation like a color change or a haircut, ask the client in writing, by text or a simple form, whether you can post before-and-after photos, and only post once you have that yes on file. Tag the service and stylist in the caption, and keep the client's name off it unless they ask to be tagged.

Why it works: Getting consent in writing protects the client's privacy and your business, while a real transformation photo shows prospective clients exactly what you deliver.