Depends on the reasons for locking it up. If its being locked up because the store thinks black people will steal it, yeah, thats kinda racist.
But if there is a history of the product being stolen and the measures are being taken to prevent theft, then no.
It isn't an "if" scenario - it's literally only locked up to prevent theft, because the rates of theft on black hair care products is insane.
Like, actually think about it logically - do you really think a company that penny-pinches to the degree of Walmart would invest the time, money, effort, and manpower to lock that shit up and have a keyholder get it every time someone wants to buy it JUST to fuck with black people? And NOT because they legitimately believe (rightfully so) that it would increase their profit margin by enabling them to control theft on these products?
It's like absolutely nobody on the internet has any fucking idea what it's like to do anything requiring more business savvy than flip a god-damned burger - companies don't do "racist" things unless they're willing to lose a shit-ton of money, or just be a niche business. The largest brick-and-mortar retailer in the fucking world isn't going to invest millions of dollars into loss-prevention measures because racism.
Right its the same reason why men's razors are typically locked up. They are the most stolen items in a store. All these stores need to make products