It’s no secret that you often find a great deal on a razor, only to find that its blades cost you three times what the rest of it costs. about the Philips OneBlade itself, you’ll need to replace the blades at some point. The retailer has reduced the price of the OneBlade Skin-Protect Intimate Blade heads to just £19.92, down 29% from the RRP of £27.99 . That’s a steep saving, especially given you’re paying £9.96 for each blade, and they’ll last you four months each. Each uses the SkinProtect blade, which is ideal for shaving your face, your pits, and your bits (maybe swap out your blade depending on the area…).