Do not infer human safety from short sequence length
FDA reports that it has not identified human exposure data for KPV drug products by any route. A three-residue identity does not make that evidence gap disappear.
Documentation to request
Ask for the exact sequence and identity methods, and distinguish laboratory findings from any proposed human use.
Regulatory context: FDA: substance-specific safety concerns. Source reviewed . This source does not verify the identity, testing or availability of our catalog references.
Related guidance: Evidence review before expanding a clinic menu. These references support a review, not a treatment recommendation or supply authorization.