Herbs

Herbs are healing items in the Resident Evil series. Every game to date has had herbs. For years it was unclear how exactly they were administered, because they were usable only on the inventory screen. Recently, Resident Evil 5, which does not have a separate inventory screen, depicted characters applying herbs in the form of a spray, similar to First Aid Spray.

Types of herbs
There are three main types of herbs: green, red and blue. Resident Evil 4 throws out the blue herb and features a new, yellow herb. Resident Evil 5 contains only red and green herbs, and only 2 herbs may be combined at once.

Green Herbs


The base herb. Heals a small amount of health. For most of the games, it will restore health by one rating (yellow caution to Fine, etc.). It can be combined with any of the other herbs, though only three herbs of any type can be combined at once. When the user is in danger or critical health level, a single green herb by itself will be much more effective than it would be otherwise sending the user back to Yellow Caution.

Blue Herbs
Blue herbs are used to cure poison. As Resident Evil 4 does not have poison, they are not featured in that game. Note that some creatures, most notably the Yawn, have poison that cannot be cured by a Blue Herb. These poisons require a special serum.

Red Herb


Red herbs have no effect on their own. (Unless you play the Outbreak games, they stop infection temporarily.) They are mixed with green herbs to triple the healing effect. In later games, as health is measured in a bar instead of ratings, they simply restore the target's health completely (in RE5 they completely heal both the user and the person being healed).

Yellow Herb
Resident Evil 4 features a yellow herb to increase the player's (or their ally's) maximum health. They must be combined with other herbs to work.

Purple Herb
Resident Evil: Gaiden was the only game to feature the purple herb. It has the ability to heal both poison and heal 25% of the users health.

Trivia

 * In most Resident Evil games, herbs can be seen as a plant. When combined together it will change to form of powder on paper. In Resident Evil 4, when you combine herbs, it can be seen as layers in test tubes. In Resident Evil 5, herbs only show in a test tube and can be used as a spray.
 * Jill Valentine is able to heal her teammates with either a selection of a green herbs or a combination of a green and red herbs if she is selected as a heal type in Marvel Vs Capcom 2.
 * In games 1-3, as well as 0, herbs were described as being native to Raccoon City and the surrounding mountains, yet they still appear at Rockfort Island, in the Antarctic Base, and in Spain and Kijuju.
 * These type of healing herbs were grown around the globe by Umbrella. That's the reason they were in Resident Evil Code Veronica, Survivor Series, 4 and Resident Evil 5.
 * In Resident Evil Outbreak, Playing or giving the combination of green+blue+red to George, will result as a antivirus large,which will stop the growing infection in the hosts body for 9 minutes.How ever, In Resident Evil Outbreak file #2, It will give the player 3 normal antivirus that will stop the infection for 3 minutes.
 * In Most games, A single herb will recover about 1/3 of the player's health. However in the outbreak series, it will just recover 500 hp.
 * A mix of Green+Red herb will eventually restores a players full health, except for Outbreak series, which will give the player just 2000 hp (enough to give full health to female characters only).
 * In the Outbreak series, any kind of herb can stop the infection for 30 seconds.
 * Herbs are encountered most in the Resident Evil 4 and 5 Mercenaries