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See what research suggests in the Concerns and Cautions section of our article about beetroot juice and supplements

Leave on for 2-3 minutes until your face is covered in frothy bubbles, massage into your skin using small circular motions and a small amount of water

The recommended dosage is one 500mcg capsule daily, preferably on an empty stomach, unless directed otherwise by a healthcare professional

Hutabarat RA, Suparman E, Fagey W

Investigations assess encapsulation methods, individual absorption kinetics, peptidepeptide interactions, enteric-coating systems, excipient compatibility, and other delivery technologies designed to preserve peptide integrity and improve experimental bioavailability