Lab4Paws is a brand of Sellomics GmbH, a Germany-based company providing laboratory testing and scientific support for pet food, supplement, nutraceutical, and pet cosmetic brands. It helps companies substantiate product health and functional claims with data from in-vitro studies on finished products, using cellular and microbiome models. Testing does not involve live animals, and the Essentials Plan does not require disclosure of a product’s formulation.

Lab4Paws’ services include studies of areas such as joint health, skin vitality, digestion, and weight management. Depending on the project, analyses can assess biological outcomes in tissue models and examine gene expression, offering more detailed evidence than a basic viability measure. Clients receive a Lab-Tested Efficacy certification, a full data report, claim recommendations, and scientific support if claims are challenged. The company also offers help selecting commercially relevant claims and planning studies around species, category, budget, and timeline. Testing typically takes two to three weeks from sample submission to a validated claim statement.