go to a tall building that has a lot of things you can buy
In Driftveil market place, you can buy up to a dozen of them.
An HP UP increases the maximum number of HP (hitpoints) a Pokemon has. This allows it to absorb more damage from attacks before it faints.
The Energy Guru at the outdoor market in Slateport city sells carbos, zinc, iron,etc. but he does not sell PP ups or HP ups. Basically, you cannot buy PP ups or HP ups
The Pokemon with the lowest HP is Shedinga. The base HP for this guy is 1, and stays that way no matter what unless you hack. It at least has the ability Wonder Guard to make up for this.
go to a tall building that has a lot of things you can buy
To raise the EV Speed stat, a Carbos and several Swift Wings (Only available in Pokemon Black and White and up) work. Temporarily, you can use an X Speed during battle, which will wear off when you switch your Pokemon or when the battle ends.
In Driftveil market place, you can buy up to a dozen of them.
An HP UP increases the maximum number of HP (hitpoints) a Pokemon has. This allows it to absorb more damage from attacks before it faints.
The item Hp Up if used on a Pokemon will increase the maximum amount of health that Pokemon has currently so lets say your Pokemon has 20 HP use the Hp Up on it and now it may have up to 22 HP and this isn't temporary once you use the item it's Hp will remain 22 until of course you level it up or use another Hp Up.
If you have beaten the Elite Four then clone it. If you havent then you can buy HP UP so you can boost up your level 100's HP. It really all depends on what you want to do do with it.
go to bag,go to medicines case,click on hp and give to pokemon.
level the pokemon up, buy them in a mart, and go to a place where they have pokeballs and have items
By leveling up your Pokemon
Softboiled is a move that allows a pokemon to restore half its hp
Pokemon to higher level or HP box full
The Highest amount of HP that the game can display is up to 999 HP. That amount is impossible to achieve by legit means, Blissey is the only pokemon with the highest HP stat that can reach up to 720, if trained right.