Can I use Nykaa Wallet balance outside Nykaa with some other ecommerce sites? Nykaa June 07, 2018 11:27 Updated Nykaa Wallet balance can't be used outside Nykaa. It can be used only on Nykaa site/app to purchase goods and services. Related articles Where would I receive refund if I placed order through Nykaa Wallet? How do I return an item purchased on Nykaa?