You need a clear differentiator especially if you want to justify the high markup that your products have. Right now, the business model seems to capitalize on the domain name and target new users that are unaware of the average price of the nootropics on sites like ceretropic.com, powdercity.com or nootropicsdepot.com
All of them have unique differentiators be it price, quality or unique variants of the products. I don't see anything worth paying a premium on your site.
By your admission you are essentially using ceretropic labs as a drop shipper; so is the same product and the same quality with a higher markup.
Why should I give you my money? And before you answer with `we don't care if you buy from ceretropic.com or powdercity.com they are good guys.` Stop and think you are starting a business, and you should have a clear answer for that if not then you are wasting your time, money and energy; setting yourself for failure.