Home > Cruelty-free Companies > Serum No. 5 Serum No. 5 is Cruelty-Free Serum No. 5 Company Website Yes, Serum No. 5 is cruelty-free. They ensure that neither their ingredients nor finished products are tested on animals, and their suppliers and third parties follow the same standard. Search for more cruelty-free options Where to Find Serum No. 5 Web Site What Serum No. 5 Sells Beauty Beauty Nail Care Nail Care Skin Care Skin Care