Purlisse is currently running a 20% off skincare sale, the top offer on this page, and it is the best starting point if your cart is any mix of skincare items. The 20% off skincare applies site only while stock lasts and cannot be used with any other offers, so it is the primary deal to test at checkout.
If your cart is general skincare or mixed items: Use the 20% off skincare sale. It covers a wide range of items across Purlisse's health and beauty range, so taking 20% off your whole skincare subtotal will usually save more than the narrower deals.
If you are buying moisturizers only: The 20% off moisturizers and the 20% off skincare are the same rate. If both apply automatically, choose the one that the basket shows at checkout. Either way you get 20% off moisturizers; the skincare sale is broader, but both are 20% off.
If you are buying SPF products: The SPF sale gives 15% off eligible SPF items and is applied automatically at checkout. Compare that to the 20% skincare sale, which cannot be combined with other offers. If the SPF items are included within the skincare category and the 20% skincare is active for them, the 20% skincare will leave you with the lower total. If an SPF item is excluded from the skincare sale per product selection, use the 15% SPF discount.
If you plan to buy three Juicy Lip Tints: There is a 15% discount when you add three lip tints to your cart and the reduction applies automatically. The skincare 20% still beats 15% if those lip tints are classed as skincare in your basket and the 20% skincare is available, but remember the skincare sale cannot be used with other offers. If the lip tint trio is outside skincare or the site forces the 15% trio deal, use the 15% off three lip tints.
If you are a new email subscriber or want subscription pricing: The 10% off with email sign up is a signup offer. Mention the 10% in low spend or first time buyer scenarios only. It can be useful for a single small purchase if no other higher rate sale applies, but the skincare 20% will save more than 10% on the same items when it is allowed.
When choosing, pick the single offer that gives the lowest total price for your exact items. Note that the 20% off skincare explicitly cannot be used with any other offers, so you must not expect to combine it with the 15% SPF or the 15% three lip tint deal. Apply whichever automatic discount the site shows at checkout and take the one that leaves the smaller final price.