The evolvetogether 10% off sitewide promo at the top of this page is the main offer, and it is best for mixed carts or full price items when you want a straightforward saving. The code takes 10% off everything sitewide but cannot be used with any other codes or offers, so it is most useful when you do not plan to use the sale multi buy deals.
If you are buying a single full price item under $75: use the 10% off promo. The code takes 10% off the item price and may still leave shipping to pay if your order remains under the $75 free shipping threshold. For example, on a $58 body cream the code takes 10% off, reducing the price to $52.20.
If your order is $75 or more but not a 3 item sale set: use the 10% off promo and get free shipping if your order total before shipping exceeds $75. For a $100 full price cart, the code takes 10% off, making the items $90, and you qualify for free shipping because the free shipping threshold is orders over $75.
If you are buying three items that are on sale: compare the two sale multi buy offers before entering the code, because the code cannot be stacked with other offers. The sale Built You Own Set gives 15% off when you buy 3 sale items. The other sale offers 20% off when you buy 3 products (its terms say minimum purchase over 3 product). If the three items are eligible for the 20% sale rule, that will beat the 10% code. For example, three sale items costing $30 each total $90; 20% off brings the total to $72, saving $18, while the 10% sitewide code would reduce $90 to $81, saving $9.
If you are buying a marked deal item priced at $36 to $74: buy the deal directly when the price itself is lower than applying 10% to a full price equivalent. For instance, the $43 hand cream discovery set is $43; the 10% code would make an equivalent full price item $38.70, but you cannot apply the code to an item sold at a marked deal price if the site treats the deal as part of a sale that prohibits codes.
When choosing, run the math on the same cart: apply the 10% discount to your full price total and compare that final total to the sale price total after the 15% or 20% multi buy discount. Take the option that leaves the lower total. Use only one discount per order because the promo code terms say one code per order and no combination with other codes and offers.