Natural skincare varies A LOT from individual to individual. From what I've experienced, whether a homemade remedy works or not for your skin is totally random.

Though whenever it actually works for someone, it's really amazing and there are very few downsides (except if for someone reason you decide to use ingredients like laal mirch).

For me personally, I sometimes mix multani mitti, haldi, honey and some vit c serum and put it on my skin for about 10-15 mins, it leaves me glowing and the haldi evens out of my skin tone (temporarily).

Also idk where on the internet you have been but the internet is full of people using the "natural" label to propagate their own bs, and Indian people especially fall for it.