We have individual product purchase right on the website. Regular and large sizes are available here: https://www.tiege.com/collections/all
Subscribe and save, tap any product to choose member autoship or one time purchase. You'll see size options, quantity, ingredients, benefits, and usage instructions too.
The subscription is pay per order, not monthly, and starts out with a renewal frequency of 30 days for most products.
If you would like more than one product, add an item to the cart, and click "+" or "-" to change the quantity.