ZestMoney advances you money upfront in the hope that you will repay it in EMIs over an extended period of time. So, the more obvious question of trust is the one in the reverse direction i.e. Can ZestMoney trust you?
I had a quick glance at the workflow of a ZestMoney payment. You place your order directly with a Seller who accepts ZestMoney as a mode of payment. Since you don’t place your order with ZestMoney or commit money to ZestMoney, the question of you trusting https://skincarepillsshop.com ZestMoney doesn’t really arise.
That said, if the real question is whether you can trust the Sellers that accept ZestMoney, that’s a valid question. I couldn’t recognize a single seller on the ZestMoney merchant list. To me, that’s a huge red flag. But others may be more adventurous in their online shopping endeavors than me.
Personally, ZestMoney or no ZestMoney, online or offline, I treat Caveat Emptor as a very useful principle whenever I buy anything from anyone.