@Hi Milly 21 I have also started using the Swiish Collagen powder but it’s still too early to really see any results, though my fingernails are looking better and appear to be much stronger! I also take Swiish Supergreen Powder every morning! I started on this as soon as I finished active treatment (I’m TNBC, so no hormone treatment) and I’m sure it has helped me a lot. Sally Obermeder from Swiish is also a TNBC survivor and I feel sure she would not be recommending products that might be harmful to breast cancer survivors. Her book ‘Never Stop Believing’ was very inspirational for me.