I've actually noticed the opposite... Silk Dreams, Curl Junkie Smoothing Lotion, BASK, KBB (even though I don't use this line anymore). I actually can't think of the last time I bought something from a black hair company that didn't smell good.
I can't cosign completely with you OP regarding drug store products, yes stuff like sulfur 8 stinks but I love the way ORS products (especially the replenishment pack), the green bergamot and indian hemp grease smells. In fact the Garnier leave you mentioned used to stink before the formula change. You gotta try some of the products the ladies are mentioning, not only do they smell great, but most of them could give you better results.
step out of your bubble and broaden your horizons hun. You will discover amazing scents of Black made/for hair products.
Good luck!
Its a conspiracy lol
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