The first offer on the page is the 20% off everything promo, so start with the 20% off everything code at the top of this page; it takes 20% off Routine supplements across the full range and is best for general orders of multiple items. That code cannot be combined with any other offers, so use it when a straight percent discount is the clearest saving for your cart.
Small orders under $50. If your cart totals $40, for example, the 20% off code takes $8 off and leaves $32, while a $10 off code reduces the total to $30, which is $2 cheaper. Use the $10 off code for small orders when the fixed amount saves more than 20%.
Medium orders around $50 to $100. On a $50 order, the 20% code saves $10 leaving $40, which matches a $10 off code; at $60 the 20% code saves $12 leaving $48, so the percent code is already better. For a $60 order, choose the 20% off code.
Larger orders over $100. On a $120 order, the 20% code saves $24 leaving $96, so percent is clearly best for larger carts. Use the 20% off everything code on multi item orders or when your total is high enough that 20% beats any fixed discount.
Buying a specific supplement on sale. Some listings show a 45% off deal on the Routine Prebiotic plus probiotic packs for set supply lengths. Those sale discounts apply to selected products only and may be a bigger saving than the sitewide 20% code for those items. If you are buying one of the listed 6 month or 3 month packs, choose the 45% or 33% sale price on that product rather than the 20% code, because the sale discount is applied to the product price without needing a code.
Subscription orders. There is a 20% off subscription deal valid only on subscription orders. If you plan to subscribe, pick the subscription 20% off rather than a one time code, because the subscription discount is specific to recurring orders.
Free gift and first time newsletter signup. A free reusable glass container is available with every order while supplies last and applies to qualifying purchases. Signing up for the newsletter may give you special offers later but the newsletter signup is not the page lead and is only useful for first time customer scenarios.
Our records for the 12 months to October 2026 show nine offers listed, six of them percent codes with the biggest tested percent at 25% in December 2025 and the typical code size 20%. Our team carried out five checkout tests across five offers in the 12 months to October 2026, with four screenshots kept as proof.
When you choose, do the arithmetic for your cart: pick the code or sale that leaves the lower total. The 20% codes state they cannot be combined with other offers, so apply only one code and take whichever single discount results in the smaller final price.