It just occurred to me that new brushes can be a problem for good lathering. My thinking is this:
1) Natural hair from real mammals will have sebaceous secretions (skin oils) on them. While I'm sure the hair is cleaned in some way before it is used, that cleaning may have some issues.
1a) If the cleaning is too mild, the oils will still be present.
1b) If the cleaning is harsh, it will leave the hair damaged, maybe even brittle like a bad perm.
1c) If the cleaning is accomplished with non water soluble agents, they will also cause problems.
2a) If the oils are still there, they will form micelles with your shaving soap, that means less lather for you because oils are bound up in the soap.
2b) Damaged hair will take up the saponified fatty acids into the cutex of the hair and your lather will be lessened. Magnesium or calcium from harsh cleaning with also react irreversibly with soap and make it precipitate out of solution.
2c) Organic cleansers will interact with the soap, which is the same thing the oils in 1a do.
It is key to good wet shaving that your brand new brush must be conditioned by washing with mild shampoo, maybe several times, prior to its first use. If the hair seems brittle or damaged, it may not even be useable. But it at least needs some conditioners to try to close the cutex before using.
WASH YOUR BRUSHES BEFORE THEIR FIRST USE.
1) Natural hair from real mammals will have sebaceous secretions (skin oils) on them. While I'm sure the hair is cleaned in some way before it is used, that cleaning may have some issues.
1a) If the cleaning is too mild, the oils will still be present.
1b) If the cleaning is harsh, it will leave the hair damaged, maybe even brittle like a bad perm.
1c) If the cleaning is accomplished with non water soluble agents, they will also cause problems.
2a) If the oils are still there, they will form micelles with your shaving soap, that means less lather for you because oils are bound up in the soap.
2b) Damaged hair will take up the saponified fatty acids into the cutex of the hair and your lather will be lessened. Magnesium or calcium from harsh cleaning with also react irreversibly with soap and make it precipitate out of solution.
2c) Organic cleansers will interact with the soap, which is the same thing the oils in 1a do.
It is key to good wet shaving that your brand new brush must be conditioned by washing with mild shampoo, maybe several times, prior to its first use. If the hair seems brittle or damaged, it may not even be useable. But it at least needs some conditioners to try to close the cutex before using.
WASH YOUR BRUSHES BEFORE THEIR FIRST USE.