Pigi products come through official importers in India and have a 100% customer satisfaction rate. 1. Verify on the manufacturer's website or email. There are minute differences on the fake products which the naked eye cannot identify. You can contact the manufacturer and verify the product with them. 2. Verify with the importer: Products come with importer tags and can be verified with importer on their email/customer care. 3. Protein Mixability: Whey Protein/Isolates will mix well and no signs of insoluble substances should be visible after mixing for 20+ seconds in your “Shaker”. 4. Lab Test: You can get the product tested in any food testing laboratory. 5. Lot No. Verification: Lot no. can be verified to check official import. 6. GST Invoice by seller. We also have a 30-day return policy in case of default in any one of the above-mentioned points.