Halal makeup
Halal nail polish: certification and permeability

Do not confuse certification with the word breathable
A polish described as breathable does not demonstrate water passage in every condition through that word alone. Test method, formula and number of coats matter when interpreting a result. Information about an older polish should not be transferred to a newer UV gel without confirming that the evidence actually applies to that system.
Consult the documents and your chosen religious authority
Tuesday in Love publishes information about its UV gels and identifies HCSC as its certifying organisation. Read those statements for the exact system, including base and topcoat. This guide does not issue a fatwa: for ablution questions, take the technical documents and certificate to the religious authority whose guidance you follow.
Resources to explore further
Tuesday in Love — certification
Tuesday in Love identifies HCSC and the testing stated for UV gels, which should be distinguished from older polish formulas.Tuesday in Love — nail polish questions
The manufacturer’s questions specify the system and coats involved, information needed to understand the scope of its statements.Halal Certification Services of Canada
The named certifier’s website allows its identity to be checked and clarification requested about the document applicable to a product.