What is theory behind the lubricating strips on disposable razors?

Exactly. I believe that the theory behind the "lubricating strips"is simply a marketing ploy and something that they can consequently charge you more for or use to make people think their product is better. I fully believe that they offer little to nothing of which they promise.

The real theory behind the lubricating strip is economic. It forces to you to throw away the razor when the strip wears down after just a few shaves. When the strip wears down, the angle of the blade against your face changes and it feels as if the blade(s) is/are dull. But in fact the blade(s) is/are not dull. They are made of very high quality steel and stay sharp for a very long tine. So what is the purpose of the libricating strip? It is the perpetration of a FRAUD upon the shaving public.

Try this. It is what I do. I use Gillette Fusion Proglide blades. When they are new and before I use them, I coat the lubrication strip with 4 or 5 thin coats of any cheap nail polish, which I steal from my wife, letting each coat dry before applying the next. That seals the lubricating strip so it does not get wet and does not wear down. Thus the angle of the blade to my face does not change. I have used the same Gillette Fission blade daily for more than a year. The blades are still sharp, the angle of the blade to my face does not change and they work perfectly. If after several weeks or months of daily use the nail polish coating starts to wear off and the lub strip starts to peek through, it gets another coat or two of nail polish. Gillette and the other razor manufacturers would lose a ton of business if all of the shaving public followed this simple trick which I have been using for years, ever since I realized what the FRAUDLENT lubricating strip is all about. Try it. It's simple and it works.

Incidently, if the razor companies substituted plastic for the lubricating strip to create the correct angle of blade to skin, I believe you would not know the difference when shaving. You can send all of the money you save each year to your favorite charity.

Donald L. Newman, Esq., Chicago

True, you have to draw the razor towards the handle, but it doesnt have to be down, you can shave up too! You should actually shave both directions, first with the grain and second against the grain. Or you can try to keep the razor touching your face and move it up and down in short stokes so you can pay attention to the detailed areas of your face.

But likewise, I don't find much benefit from the lubricating strip and find that I get a more comfortable shave long after the lubricating strip has dissolved. I have been using a single Mach 3 cartridge for about 9 months now and lubricate with water, it still works great!

What I know is that this "lubricating strip" contains a potassium salt material that is known for its bleeding preventive properties to stop the minor bleeds occur as a result of shaving