I’ve been taking collegan for awhile to stave off hair loss form GLP1 use. Not only haven’t I lost hair, but my nails are so much stronger and my skin is better. I use marine collegan powder in my choffy because I don’t do cow products. The one I used (Hearthy Foods) was very reasonably priced, but is now out of stock everywhere. I think they stopped making it. I’m trying a new one by Dr Foster once I use up my current bag. I just hope I get the same results. Maybe just a place to start if you can’t get a prescription. It takes a month or two to see results.