papaya kojic acid glutathione Koji White & Skin Brightening Soap, Exfoliating Facial Bar, Radiant Skin, Rejuvenates, Moisturizer, Even Tone Cleansing Bar with Hyaluronic Acid, Vegan Soap, 2.82 oz (2 Bars) : Beauty Soap, Gels & Wash Lotions

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TB-500 is a brand/formulation name for a short TB4-derived peptidespecifically the N-acetylated 1723 fragment (LKKTETQ) of thymosin 4 (the actin-binding motif)

By way of illustration, consider this table: Puritans Pride (2 bottles) Puritans Pride (5 bottles) Bulk Supplements (50g) Bulk Supplements (100g) Bulk Supplements (250g) Even with the 50g container, Bulk Supplements lowest-value option, the barrier to entry is around $12 lower compared with Puritans Pride, and the per-serving expenditure is $0.01-$0.05 less

None of these are peptides either, but they get swept into the same NAD peptide conversation online, which adds to the confusion