When the product comes out, there's a possibility that demand exceeds supply. I might buy 20 lotions and sell the other 10 on eBay.
Hence I'm considering stockpiling and selling the excess on eBay.
I remember when Playstation 2 came out. Retail price: $500. eBay price: $5,000.
One mistake I look back on and regret is not selling them.
Elsa dolls from the Disney movie Frozen were selling for upwards of $10,000 on eBay, because Disney had not realized they had an iconic smash hit on their hands, they didn't manufacture enough toys ... f*****g Disney didn't manufacture enough toys.
Obviously, this won't be selling for $5,000.
I think you are overestimating the demand of this. General public will only become aware of this with some serious marketing/results. Only the niche hair forums people know about brotzu.