1. Wash Your Hands Before A Practice Session

This is pretty straight forward. Your hands gather throughout the day a lot of unwanted elements such as dirt, grease, and dead skin cells. These elements will activate a faster corrosion rate on your guitar strings.
By consistently washing your hands, not only do you get rid of all of these unwanted corrosive agents, but you also help your strings decrease their corrosion rate.
I’d strongly recommend you wash your hands before and after every guitar session you have. It is especially more important to do this if you have sweaty or greasy hands.
2. Purchase The Proper Cleaning Products For Your Strings

Having a good combo of cleaning/lubricating products will not only extend your strings’ life but also smoothen out your playing and remove unwanted friction. There are numerous good products out there for your guitar, you can get a guitar cleaning oil from marvinempire.ng.
3. Purchase Top Quality Strings

high-quality strings, especially the ones with an added layer of coating, last much longer. They also retain a good tone for longer periods.
These are my top 3 brands for acoustic or electric guitar string sets: D’Addario, Fender and Yamaha. They are also quite durable, so you won’t have to constantly change them.
4. Keep Your Guitar In A Moisture-Free Space

Moisture is the most corrosive agent you can be in contact with that you have little control over. It’s not like you can decide to move to another country or place right away or just magically change the climate.
However, a couple of things you can do are storing your guitar in the driest place in your house or purchasing an air dehumidifier. Mind you; if you don’t live in a very humid place (like near the sea), this might not be your biggest problem. However, it never hurts to have a good dehumidifier at your place.
5. Always Clean Your Guitar After A Session

Out of all of the tips here, this is the most important and influential habit you can implement.
Regardless of how much you sweat, how greasy your hands usually are, and your overall hygiene, it’s a fact that you are most in contact with your guitar when playing (duh…).
Therefore, this is the time when your guitar strings are most prone to storing corrosive elements.
Suppose you make it a habit to always clean your strings, pickups, and all of the metal parts in your guitar. You can DRASTICALLY reduce all of the corrosion rates happening in your guitar and your strings.

