
R-Lipoic Acid
R-Lipoic Acid is the only naturally-occurring and 100% biologically active form of
the metabolic antioxidant alpha-lipoic acid. Researchers have stated that R-Lipoic Acid
is 10 times stronger than the racemate alpha-lipoic acid at reducing inflammation.
R-Lipoic Acid produces many beneficial actions that are unachievable with regular alpha-lipoic
acid.
The benefits of R-Lipoic Acid:
- R-Lipoic Acid has blocked MDMA neurotoxicity.*
- R-Lipoic Acid is the only form of lipoic acid that your body synthesizes and can safely metabolize.
- R-Lipoic Acid is the only form of lipoic acid that is proven to significantly reduce inflammation, an underlying cause of aging.
- R-Lipoic Acid is the only form of lipoic acid that is proven to significantly increase your cellular and mitochondrial antioxidant activity for preventing mitochondrial decay. This effectively attenuates the reported increase in oxidative stress with aging.
- R-Lipoic Acid is the only form of lipoic acid that is proven to improve memory, reduce brain damage, reverse cognitive dysfunction, and protect the brain from neurodegeneration associated with ageing.
- R-Lipoic Acid is the only form of lipoic acid that is been proven to significantly increase insulin sensitivity, enhance glucose transport, increase metabolic rate and reduce the gain in body fat from aging.
- R-Lipoic Acid is the only form of lipoic acid that is proven to protect body fats against oxidative damage, chelate harmful metals and reverse stress damage in your heart.
- R-Lipoic Acid is the only form of lipoic that is proven to significantly increase or maintain levels of other antioxidants including Coenzyme Q10, vitamin C, vitamin E and glutathione.
- R-Lipoic Acid is the only form of lipoic acid that is proven to expand total life span.
*The most relevant study for human MDMA users is the study by Aguille who showed that a massive
injection of lipoate into a rat blocked MDMA neurotoxicity. An equivalent dose with known human PK can be
achieved orally at 700-1000mg. An oral solution of lipoate increases plasma concentrations four fold over
solid dosage forms. The experiment was believed to demonstrate the free radical mechanism for NT, but
lipoate also serves several other roles that may enhance neuroprotection. Lipoate induces two phase two
detoxification enzymes;GST, the enzyme responsible for the conjugation of HHMA to GSH and NQO1 which
reduces the HHMA semiquinone. Lipoate forms a sulphide bond with hepatic GSH, preventing oxidation and
preserving the GSH:GSSH ratio (Reduced glutathione /oxidized glutathione), causing an efflux of the
protective conjugate into the biliary duct.This removes hepatic GSH and prevents it from binding
covalently to HHMA. The thiol conjugates of GSH and HHMA are implicated in the NT. Therefore it is
necessary to maintain both high plasma levels of lipoate (to insure brain penetration) and liver levels.
Lipoate has a substantial first pass metabolism and bioavailability of ~30%. The first pass is
stereospecific with SLA accumulating preferentially. Therefore a spiked ratio of RLA/SLA can cause a
substantial increase in RLA plasma levels while allowing SLA and metabolites to react with GSH and cause
its biliary efflux. The conjugation reaction is not stereospecific. This allows protection of brain
mitochondrial enzymes which utilize only the R form. A small amount of SLA nonenzymatically catalyzes
the reduction of RLA to DHLA. RLA is known to be neuroprotective of the DA system and accumulates in
the brain over several days (lysine bound).
RLA should be used daily in high doses to replenish previously depleted GSH, and
prevent further oxidative damage. This also argues against supplemental GSH precursors like NAC,
cysteine immediately prior or concurrent with MDMA. Supplemental NAC should be discontinued several days
prior to MDMA exposure and resumed 36 hours after MDMA. The concentration of hepatic GSH is less important
than the amount of GST, and the HHMA semiquinone for conjugation reactions. Lipoate has a short plasma
half life and so the timing of administration must be adjusted to coincide with the metabolism of MDMA.
This is best accomplished by taking lipoic acid 1/2 hour prior to concurrently with MDMA.
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Daily Dosage: 50-1000mg of RLA a day
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R-Lipoic Acid is an essential antioxidant and metabolic co-factor that helps reduce lipid
peroxidation. The changes in lipid peroxidation can be measured with the
RAD TEST™.
SPECIAL ONLINE PRICE
$29.75 per bottle (60 capsules - 75mg)

These statements have not been evaluated by the Food and Drug Administration.
References
- Aguirre N. Alpha-lipoic acid prevents 3,4-methylenedioxy-methamphetamine (MDMA)-induced neurotoxicity. Neuroreport 1999 Nov 26;10(17):3675-80
- Flier J, et al. The neuroprotective antioxidant alpha-lipoic acid induces detoxication enzymes in cultured astroglial cells. Free Radic Res 2002 Jun;36(6):695-9
- Balijepalli S, et al. Inhibition of mitochondrial complex I by haloperidol: the role of thiol oxidation. Neuropharmacology 1999 Apr;38(4):567-77
- Gregus Z, et al. Effect of lipoic acid on biliary excretion of glutathione and metals. Toxicol Appl Pharmacol 1992 May;114(1):88-96
- Bai F, et al. Serotonergic neurotoxicity of 3,4-(+/-)-methylenedioxyamphetamine and 3,4-(+/-)-methylendioxymethamphetamine (ecstasy) is potentiated by inhibition of gamma-glutamyl transpeptidase. Chem Res Toxicol 2001 Jul;14(7):863-70
- Bharat S, et al. Pre-treatment with R-lipoic acid alleviates the effects of GSH depletion in PC12 cells: implications for Parkinson's disease therapy. Neurotoxicology 2002 Oct;23(4-5):479-86
- Teichert J, et al. Investigations on the pharmacokinetics of alpha-lipoic acid in healthy volunteers. Int J Clin Pharmacol Ther 1998 Dec;36(12):625-8
- Breithaupt-Grogler, et al. Dose-proportionality of oral thioctic acid--coincidence of assessments via pooled plasma and individual data. Eur J Pharm Sci 1999 Apr;8(1):57-65
- Liu J, et al. Memory loss in old rats is associated with brain mitochondrial decay and RNA/DNA oxidation: partial reversal by feeding acetyl-L-carnitine and/or R-alpha -lipoic acid. Proc Natl Acad Sci U S A 2002 Feb 19;99(4):2356-61
- Biewenga GP, et al. Combined Non-Enzymatic and Enzymatic Reduction favors Bioactivation of Racemic Lipoic Acid: An Advantage of a Racemic Drug? Chirality 9:362-366 (1997)
- Packer L, et al. Neuroprotection by the metabolic antioxidant alpha-lipoic acid. Free Radic Biol Med 1997;22(1-2):359-78
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