Dermaflash's headline offer is the VIP Sale delivering 25% off everything sitewide. This is the best starting point for most shoppers, though several other percentage deals apply to specific situations, and there's a structured discount system based on how many items you're buying.
Buying just one or two items: If you're picking up a single product or a pair of items, the 10% off deal for buying 1-2 items applies. This won't beat the VIP Sale's 25%, so go with the VIP Sale instead.
Adding three or four items to your basket: The 15% off offer for buying 3-4 items kicks in at this basket size. Again, the VIP Sale's 25% discount will save you more money, so stick with that.
Buying five or more items: Once you reach five items, you unlock the 20% off deal. The VIP Sale still wins here at 25% off, making it the stronger choice.
Shopping for skincare bundles specifically: Dermaflash offers 25% off skincare bundles as a dedicated promotion. This matches the VIP Sale discount, so either works equally well for a bundle purchase.
Buying a device and skincare bundle together: The 25% off deal for device plus skincare bundles gives you the same discount as the VIP Sale, so choose whichever applies to your order.
Buying from the sale section: Up to 25% off sale items means discounts vary depending on the item. Compare this against the VIP Sale's flat 25% on everything to see which gives the better total.
Subscription orders: The up to 20% off subscription discount applies if you're setting up a recurring purchase, but this falls short of the VIP Sale's 25% across your order.
Paying with interest-free finance: Several 15% off deals are also listed, but the VIP Sale beats these too.
Remember that only one offer applies at checkout. Work out which deal delivers the biggest saving on your specific basket, then apply that one. The VIP Sale at 25% off everything covers most situations, but if you're buying sale items, bundles, or setting up a subscription, take a moment to calculate whether any of the specialized offers might save you more.