‘l’
- l-arginine
- l-carnitine
- l-citrulline
- l-ornithine-l-aspartate
- l-tryptophan
- labdanum
- laburnum
- lactase
- lactobacillus
- lactoferrin
- lady fern
- lady's bedstraw
- laminaria
- larch arabinogalactan
- larch turpentine
- lathyrus
- laurelwood
- lauric acid
- lavender
- lavender cotton
- laxogenin
- lecithin
- lemon
- lemon balm
- lemon eucalyptus
- lemon verbena
- lemongrass
- lentinan
- lesser celandine
- levant berry
- licorice
- ligandrol - [fast facts]
- lily-of-the-valley
- lime
- limonene
- linden
- lingonberry
- lion's mane mushroom
- lipase
- lithium
- liver extract
- liverwort
- lobelia
- logwood
- loosestrife
- lorenzo's oil
- lotus
- lousewort
- lovage
- luffa
- lunasin
- lungmoss
- lungwort
- lupin
- lutein
- lychee
- lycopene
- lysine