Not sure about Astra. I've used Merkur, Sharks, and Persona but the Persona has been the best in my opinion. Merkur blades are sharp. Sharks blades are economical but Persona blades are both sharp and economical. I shave everyday and I've only used two Persona blades in a year. I use the blade until it becomes dull. Merkur blades last about two weeks for me and Shark blades last about a week and a half. I had two Persona blades that came with my Magnus double edge safety razor.

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Personna Double Edge Razor Blades[Amazon-developed Certification] Compact by Design

Personna Double Edge Razor Blades[Amazon-developed Certification] Compact by Design

Q: Will these work on the buttocks?

Actually if one is seriously going to use these for shaving purposes ... then yes use them there and places like that. And I say that seriously because these blades are not platinum coated and I'm of the opinion (based on long experience ... since 1960) that a non-platinum coated blade isn't truly suitable to use on one's face. For some reason platinum takes the "bite" out of a blade and almost magically provides a much more comfortable shave. I suspect these Personna blades are as good as any non-platinum coated blade. But virtually any platinum coated blade will provide a more comfortable shave than these particular non-platinum coated Personna blades. But Personna also sells platinum-chrome blades and they are very good for facial shaving. But for the buttocks? These will probably work fine. But I'm sure most the rest of us would be a bit curious to see the position you were in when you did it.

Q: Are these considered the "barber" blades or the "lab blues"?

Reading the box, these blades are made in Germany. The so-called "Lab Blues" (It's a nickname, not an official designation) are made in Verona, Virginia, USA by a company called Accutec. They make 2 double edge blades, both of which are not sold through the usual retail channels. The ones stamped "For Hospital Use" have been nicknamed "Med Preps" and sell for about $35/100 through lab equipment distributors. The "Lab Blues", sold through the same channels, usually to laboratories for slide preparation are not stamped like that and typically go for about $10-20/100.

Q: Where do men get their information about all the different razor brands and which ones are good for coarse beards, info on shaving soap vs oil, etc.?

One way is to google "wet shaving" or read the reviews on Amazon for different products.Also, www.badgerandblade.com is a forum on shaving. Youtube has a lot of reviews and videos of guys trying different blades, soaps, oil, etc. I think every man must decide for himself, after trying a few things. Each face, beard and technique is unique to the individual. Some like multiple passes (with, across and against the "grain" of direction that the hair grows, often with re-lathering in between.) Just one guy's opinion but, the skill with the razor counts for as much as the cream, lather, oil, foam and blade. For me, it seems anyway.

Product ID: 725757940

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Details

Brand
Personna
Number of blades
100
Age range (description)
Adult
Unit count
1 count
Number of items
1
Global Trade Identification Number

📦Individually wrapped for hygiene & convenience

🪒25% sharper glide-coated blades

⚙️Fits most safety razors seamlessly

Frequently Bought Together

Personna DE Double Edge Razor Blades, 100 Count

Taylor of Old Bond Street Sandalwood Shaving Cream Bowl, 5.3-Ounce

Merkur Mk34c Double Edge Razor with Heavy Duty Short Handle

Description

🪒 Elevate your shave game with precision and style!

SHARPER THAN EVER - Experience 25% sharper glide-coated stainless steel blades for an ultra-smooth shave.
DURABLE HYGIENIC - Stainless steel construction ensures long-lasting sharpness and hygienic use every time.
EFFORTLESS GROOMING - Glide-coated blades reduce irritation and deliver a close, comfortable shave—because your skin deserves the best.
PRECISION PACKAGING - Individually wrapped blades in a smart dispenser carton let you grab one blade at a time—no waste, no hassle.
UNIVERSAL COMPATIBILITY - Designed to fit most safety razors, making it the perfect upgrade for your grooming kit.

Personna Double Edge Razor Blades feature 25% sharper glide-coated stainless steel for a smooth, irritation-free shave. Individually wrapped blades in a dispenser carton provide hygienic, convenient single-blade access. Compatible with most safety razors, these blades combine durability and precision for professional-quality grooming.

Specifications

Weight	180 g
Volume	180 Millilitres

Have a Question? See What Others Asked

Will these work on the buttocks?

astra

Are these considered the "barber" blades or the "lab blues"?

Where do men get their information about all the different razor brands and which ones are good for coarse beards, info on shaving soap vs oil, etc.?

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