does changing shampoo will cause hairfall to smoothened hair?

Question

Nykaa Army · Answer

Hi Hasini, switching up shampoos doesn't cause hairfall. However for smoothened hair we suggest using a shampoo and conditioner to protect your treated hair such as http://www.nykaa.com/wella-professionals-elements-shampoo-and-mask-regime-for-chemically-treated-hair.html.

Q: does changing shampoo will cause hairfall to smoothened hair?