Are you looking for the sharpest razor blades? This comprehensive guide will provide you with a quick reference to the sharpest blades available, including a comparison chart of razor blade sharpness. The pen is the sharpest blade ever made, and on the list you have, the Voskhod is probably the softest. Many people prefer Astra Greens for a smooth, crisp shave. Feather Edge Safety razors are renowned for their sharpness and aggressiveness, making them ideal for men with thick hair.
Personna blades are known for providing a smooth shave. Razor Emporium's owner used to prefer Pol Silver blades, but now opts for Perma-Sharp blades. For a more in-depth look at how the tests work, see Razor Blade Sharpening Tests or Introduction to Razor Blade Sharpness. Feather razor blades are considered to be at the higher end of the price range, costing about 25 cents per blade.
This razor may not be suitable for extremely thick mustaches, as it can cause strong tugs and pulls of the root when passing it. However, many men find that this razor works well on their hair. The coatings applied to safety blades by other manufacturers were analyzed by Razor Emporium and they couldn't decide which one was best for their own blades. The platinum-coated blade provides a smooth and comfortable shave and extends the sharpness of the blade for multiple shaves.
Astras, Merkur and Derby don't work for everyone, so it's important to experiment with different razors to find what works best for you. Shark Super Stainless razor blades are an excellent alternative to Feather if you're an advanced enthusiast of double-edged safety razors who also have a limited budget and are looking for an extremely sharp blade.