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Since founded in 1972, Progressive Laboratories has always focused helping people maximize their health potential through science-based natural medicine. Progressive Laboratories strives to apply the latest nutrition science to its products in order to create an innovative and diverse line of offerings that can help with a wide array of health concerns. To achieve this, PL uses the exact ingredient sources and forms that are used in the clinical studies it models its products after. Progressive Labs is committed to always using the best American, European, and quality-verified suppliers of key raw materials to guarantee safety and effectiveness.
L-Carnitine 500
L-Carnitine L-Tartrate
A dietary supplement containing the levo-enantiomers of carnitine and tartrate with potential chemoprotective and antioxidant activities.
L-carnitine L-tartrate increases fatty acid oxidation and reduces purine catabolism and free radical formation, which may prevent exerc...
L-Carnitine 500
$46.00
L-Glutamine Powder
L-Glutamine is the most abundant amino acid (building block for proteins) with varying benefits. One of L-Glutamine’s great benefits is in supporting the mucosal lining of your digestive tract which supports the healthy function of the gastrointestinal tract.‡
Another benefit of L-Glutamine is ...
L-Glutamine Powder
$42.00
L-Lysine
L-Lysine from Progressive Laboratories provides 500 mg of the L-lysine per vegetable capsule. Lysine is an essential amino acid needed for growth and to help maintain nitrogen balance in the body.‡ (Essential amino acids cannot be made in the body and must be supplied by the diet or supplements...
L-Lysine
$20.00
L-Tyrosine
Nutritional support for positive mood, metabolism and for adrenal, thyroid and pituitary function. Tyrosine is a precursor of adrenaline and the neurotransmitters norepinephrine and dopamine, which regulate mood and stimulate metabolism and the nervous system.‡
‡ These statements have not been e...
L-Tyrosine
$25.00
Lecithin
Lecithin is a fat that is essential in the cells of the body. It can be found in many foods, including soybeans and egg yolks. Lecithin is taken as a medicine and is also used in the manufacturing of medicines.
Lecithin is a phospholipid composed of phosphatidyl esters (phosphatides), mainly ...
Lecithin
$31.00
Legs on Edge®
Legs on Edge® is a formula designed to help support the easing of mild muscle cramps and tension typically found in the extremities and predominantly in the night-time or after periods of physical exertion. Legs on Edge® is based on a combination of electrolytes, vitamins and herbs which have b...
Legs on Edge®
$29.00
Lipid Balance
Lipid Balance from Progressive Laboratories is a proprietary formula developed by Dr. Mitchell Fleisher, MD to support healthy cholesterol and triglyceride blood lipid levels, as well as healthy circulation and cardiovascular health.‡
Lipid Balance utilizes a number of unique, clinically studied...
Lipid Balance
$67.00
Lipotrope™
Blend of botanicals – including milk thistle extract, enzymes, vitamins, and minerals to support healthy liver function and lipid metabolism.‡
‡ These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any d...
Lipotrope™
$31.00
Lithinase
Naturally chelated, low dose lithium.
Lithium, a trace element found throughout nature and is present in all organs of the body, has long been considered a foundation in the treatment of bipolar depression and plays a significant role in healthy mental function, including support for healthy moo...
Lithinase
$25.00
Lithium Orotate 5mg
Lithium, a trace element found throughout nature and is present in all organs of the body, has long been considered a foundation in the treatment of bipolar depression and plays a significant role in healthy mental function, including support for healthy mood, emotional wellness, behavior and me...
Lithium Orotate 5mg
$29.00
Lutein/Zeaxanthin
Lutein/Zeaxanthin from Progressive Labs features award-winning Lutemax 2020®, a naturally-derived marigold extract providing all three macular carotenoids—lutein and enhanced levels of both zeaxanthin isomers (RR-and RS [meso]-zeaxanthin)—at the same 5:1 ratio as found in nature to optimally sup...
Lutein/Zeaxanthin
$27.00
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