First Aid Beauty puts the 20% off promo code at the top of its current offers, and it works across the whole range of skincare treatments and anti aging products. This code is your best choice for most shopping trips, though you may find a bigger saving on specific items or with a higher basket spend.
For your first order: If you are shopping at First Aid Beauty for the first time, you can use the 15% off first order code instead of the 20% off sitewide code, but the 20% off code saves you more. If you have not yet joined the newsletter, you could also sign up through the newsletter offer to check whether there is a benefit, although First Aid Beauty does not specify what that special offer might be.
On orders from $50 to $75: The free Delux mini with orders over $50 gives you a gift instead of a cash saving. If you prefer a discount on your total, the 20% off promo code remains the strongest option.
On orders from $75 to $100: You hit the automatic 5% off tier at $75. On a $75 order, for example, the automatic 5% off deal saves you $3.75, while the 20% off promo code saves $15, so the code stays ahead. At $100, the automatic 10% off saves $10 against $20 from the code.
On orders over $100: The 10% off automatic deal applies at this threshold. On a $100 order, the 20% off code saves $20 against the automatic $10. At $125 and above, the automatic deal rises to 15% off. On a $125 order, that is $18.75 against $25 from the code, so the 20% off code still wins. The code continues to save more all the way up through higher baskets.
On selected items: The up to 50% off sale applies only to certain products, so a larger discount may be available on those specific lines. The 20% off code applies across the whole range. If you are buying marked down items, check whether the 20% code or the selected sale price gives you a better final price on each product.
On a buy one get one essentials offer: This code gives you a second item free on selected products, which can be worth more than 20% depending on the items. Check the eligible lines to see whether the free item beats the code's percentage off your whole order.
On a buy one get one free on selected items: This deal works the same way as the BOGO essentials code above, applying only to specific products.
Combining offers: First Aid Beauty's terms do not say whether you can layer the promo codes or the automatic discounts, so assume each applies on its own. Compare your final price with each available option and choose the one that leaves you paying less.
The biggest First Aid Beauty code in the 12 months to October 2026 was 30% off in November 2025, so the current 20% off code is close to typical and well worth using now. Our team tested 17 First Aid Beauty offers at checkout in the 12 months to October 2026.