Best Leave-in Product For Frizzy/dry Hair?

Hi, Indus Ladies. Any suggestions for frizzy/dry hair? I don't always have time to straight-iron my long hair, and I don't like using a lot of chemicals. I've been told to look for products in Indian stores, specially designed for thicker Indian hair. Never used these before -- do they really work better? Has anyone found something that works well to tame this frizzy hair type? Any suggestions much appreciated!

 

Yes, I've tried that, and it helps a little, but not much. I think I need something stronger...?