My Dutch shepherd, Jethro, was diagnosed with SLO a little over a year ago. For the most part Jethro’s symptoms have been minimized, but he hasn’t had much nail growth after losing all of his nails. Also, he is not able to tolerate any type of fish oil. Since giving him the Dermal O3 supplement for a month now, several of his nails have noticeably grown back to the point where they needed to be trimmed. Also, he hasn’t had any negative side effects that he had with other supplements and fish oil. It’s been over a year since I’ve had to trim his nails. It’s obvious this supplement is working, and I’ll continue to purchase this all in one supplement.