The 30% off voucher at the top of this page takes 30% off your purchase of perfume and fragrance from Nest. That code is best if your basket is mainly perfume or fragrance and you want the largest single discount on those categories. If your items are not perfume, the 25% off sitewide code or the automatic offers may be better.
Large perfume or fragrance order: Use the 30% off voucher at the top of this page. For example, on a $200 perfume order, the code takes 30% off, so you pay $140 and save $60. This is larger than the 25% sitewide code on the same perfume, which would leave you paying $150 and saving $50.
Big mixed order of non perfume items: Use the 25% off sitewide code. If your cart is $200 of general home and beauty items not limited to perfume, the 25% code reduces the total to $150 and saves $50. The 30% perfume code only applies to perfume and fragrance, so it will not cover non perfume items.
Buying more than three items of health and beauty: The 15% off when you buy more than three items can apply automatically on eligible products where the price already reflects the discount. On a $120 order made up of those eligible items, the posted prices with 15% off mean you pay $102 and save $18. Compare that to the 25% sitewide code: on the same $120 of items the code takes $30 off and leaves $90, so the sitewide code gives a bigger saving for that basket if those items are eligible for the code.
Shipping concerns: There are two shipping offers. The free shipping code takes shipping off all orders but cannot be combined with other offers, so it makes sense only if avoiding shipping cost beats available percent discounts. Alternatively, free shipping on orders over $150 applies automatically to orders of $150 or more but the page states that cannot be used with other offers. If your order is $150 or more and you prefer no code conflicts, free shipping may be attractive; otherwise compare the dollar value of shipping to the percent discount you would forfeit.
Special purchases: If you buy a Nest reed diffuser that is part of the deal, you get a free refill in the same scent. That gift is limited to selected products and one refill per fragrance. The Gift Under $250 listings simply mark items priced below $250 and do not add extra discount.
When choosing, calculate the final total for the same basket under the applicable single offer, and pick the one with the lower total. Only one code can be used at checkout where the terms say codes cannot be combined, so do not expect to stack the voucher with another code. The 30% perfume code is the first choice for fragrance heavy baskets; for broader carts, the 25% sitewide code or an automatic free shipping threshold may leave you with the lower total.