NMN products in Pakistan vary a lot in dosage. Some capsules have 150mg, others 250mg or 500mg. This affects both the price and how many capsules you'll go through per month. Most people start with 250–500mg daily, so do the math before assuming a cheaper bottle is actually a better deal. Also look for products that specify NMN purity — you want a high-purity product, not one padded with fillers. A little reading before buying saves a lot of regret later.