IDEAS FOR RYZOM

While not directly a potion, there are other ways to improve your regeneration

• Sit down. You then regenerate at double speed.
• the flowers gained from outposts themselves also give a small boost to your regeneration stats.
• There's also the profession with their produced goods - they give varying boosts to regeneration, so choose the right ones :) See wiki: https://en.wiki.ryzom.com/wiki/Occupation_Products They work quickly and give a decent boost. But the cooldown is similar to (but independent of) your normal self-regeneration stanzas.
• Play the wheel of fortune^Gubani. The potions vary a lot and have some small cooldown, but really help you continue to train. Their cooldown is reasonably short for their effect they offer.
• Be around on Easter and Christmas and hoard the Easter eggs and Christmas spheres. They come as instant +life / +sap / +stammina and +focus spheres in the range +100 ... +500. They are bulky though, so the amount of them you can hoard is somewhat limited (luckily).
• And of course: ask in region and universe other players for joint levelling. Join an active guild. Healing eachother is fastest - and that's how it should be.

In essence: there are a lot of means to improve ones regeneration settings. Yet and yes, it can still feel slow when you train alone and make heavy use of life, sap, and / or stamina... one can find ways to minimize that, e.g. also by making use of (reasonable low-level) spells on your amp or weapon to aid you in your fight and using lower-level stanzas. But of course it doesn't help with regenerating life loss due to enemy hits...I'm a bit torn wether I approve or disapprove :)
On one side it's an *MM*ORPG, so play with others should give an advantage. But there's no point in having people be bored when they cannot find another person to play with.