S-Acetyl Glutathione

Unique Verve’s S-Acetyl Glutathione Key Benefits & Actions

• Supports healthy intracellular glutathione levels — absorbed intact via chylomicrons and released as active reduced glutathione inside the cell*
• DRcaps™ acid-resistant capsules provide additional protection from gastric acid for optimal small intestine release*
• Supports the body’s primary intracellular antioxidant defense system — glutathione is the most abundant intracellular antioxidant*
• Supports phase II liver detoxification — glutathione is the substrate for glutathione S-transferase (GST) conjugation of toxins and hormone metabolites*
• Supports glutathione peroxidase (GPx) enzyme activity — neutralizing hydrogen peroxide and lipid hydroperoxides in cellular and mitochondrial environments*
• Supports healthy antioxidant activity of vitamins C and E through glutathione-mediated regeneration from their oxidized forms*
• Supports healthy immune cell function — glutathione is required for T lymphocyte and NK cell proliferation and activity*
  Supports amino acid transport across cell membranes through glutathione’s role in the gamma-glutamyl cycle*

Unique Verve’s S-Acetyl Glutathione is a precision glutathione supplement that addresses the fundamental bioavailability challenge of oral glutathione supplementation through a chemically elegant solution — S-acetylation of the cysteine sulfhydryl group.

Why Standard Oral Glutathione Fails

Reduced glutathione (GSH) is a tripeptide consisting of L-glutamate, L-cysteine, and glycine — the body’s most abundant and important intracellular antioxidant. Supplementing with reduced glutathione directly seems intuitive, but encounters two significant obstacles:

First, the majority of an oral dose of reduced glutathione is oxidized before it can be absorbed — the highly reactive sulfhydryl group on the cysteine residue is rapidly oxidized in the GI environment, converting GSH to its oxidized form (GSSG), which cannot raise intracellular glutathione levels.

Second, even if absorbed, standard glutathione is rapidly broken down by gamma-glutamyltransferase (GGT) in the intestinal epithelium and plasma — delivering its component amino acids rather than intact, functional glutathione to cells.*

Unique Verve’s S-Acetyl Glutathione Solution

S-Acetyl Glutathione (SAG) is produced by acetylating the sulfhydryl group of the cysteine residue — replacing the reactive -SH group with a stable -S-COCH₃ acetylthio group. This modification confers three critical advantages:

Chemical stability: The acetyl group protects the sulfhydryl group from oxidation during transit through the GI tract — the primary reason standard glutathione is degraded before absorption. SAG remains stable through the acidic stomach environment and throughout the small intestine.*

GGT resistance: The acetyl modification renders SAG resistant to the gamma-glutamyltransferase enzyme that would normally cleave standard glutathione at the intestinal wall — allowing SAG to pass through the intestinal epithelium intact.*

Chylomicron-mediated absorption: SAG is a lipid-like compound due to its acetyl modification. This lipophilicity allows it to be taken up intact by chylomicrons in the gut — the intestinal lipid transport vehicles that bypass portal circulation and deliver their contents directly to lymphatic circulation and then systemic circulation. This is the same absorption route used by fat-soluble vitamins — providing efficient, reliable delivery of intact SAG to systemic circulation.*

Once inside cells, intracellular esterases cleave the acetyl group — releasing active, reduced glutathione (GSH) directly within the intracellular environment where it is immediately available for antioxidant and detoxification activity.*

DRcaps™ — Additional Acid Protection To further support stability, S-Acetyl Glutathione is delivered in DRcaps™ acid-resistant capsules — specially designed to resist dissolution in stomach acid (pH 1.5–3.5) and dissolve in the more neutral environment of the small intestine, maximizing the contact of SAG with the absorptive intestinal epithelium.*

Glutathione’s Physiological Roles

Intracellular antioxidant defense: Glutathione is the body’s most abundant intracellular antioxidant — present in millimolar concentrations within cells, where it directly scavenges reactive oxygen species and serves as the electron donor for glutathione peroxidase (GPx) enzymes. GPx enzymes use glutathione to neutralize hydrogen peroxide and lipid hydroperoxides — the primary sources of oxidative damage to cellular membranes, proteins, and DNA.*

Phase II liver detoxification: Glutathione is the substrate for glutathione S-transferase (GST) enzymes — the primary phase II conjugation enzymes responsible for conjugating glutathione to electrophilic compounds including environmental toxins, pharmaceutical metabolites, and hormone metabolites such as estrogen metabolites. This conjugation dramatically increases their water solubility and enables excretion through bile or urine. Supporting glutathione availability is therefore directly relevant to comprehensive estrogen clearance and environmental detoxification support.*

Antioxidant network maintenance: Glutathione regenerates vitamins C and E from their oxidized forms — maintaining the activity of the broader cellular antioxidant network. It also maintains CoQ10 in its reduced (active) form in mitochondrial membranes.*

Immune function: Glutathione is required for the proliferation and function of T lymphocytes and natural killer (NK) cells — the adaptive and innate immune cells central to healthy immune surveillance and response. Glutathione depletion impairs virtually every aspect of immune cell activity.*

Mitochondrial protection: Mitochondria maintain a dedicated mitochondrial glutathione (mGSH) pool that is critical for protecting mitochondrial DNA, inner membrane phospholipids, and electron transport chain components from the reactive oxygen species generated during oxidative phosphorylation.*

Amino acid transport: Glutathione participates in the gamma-glutamyl cycle — a metabolic pathway involved in amino acid transport across cell membranes and in the regulation of cellular glutathione biosynthesis.*

Unique Verve’s S-Acetyl Glutathione in Clinical Context

Laboratory research has documented that oral S-Acetyl Glutathione supplementation supports healthy total glutathione levels and healthy percent-reduced glutathione (the ratio of active GSH to oxidized GSSG) — a clinically relevant biomarker of cellular redox status. Unlike supplementation with glutathione precursors (NAC, glycine, glutamine), SAG bypasses the biosynthesis step entirely, providing direct glutathione replenishment at the cellular level.*

S-Acetyl Glutathione pairs synergistically with Liver Guard (NAC for ongoing glutathione precursor supply, silymarin for hepatocyte protection, ALA for glutathione regeneration support), BioC and Advanced Vitamin C (vitamin C regenerates glutathione from its oxidized form), and SulforaOpti (Nrf2 activation upregulates glutathione S-transferase enzyme expression).

Does Not Contain

Wheat, gluten, soy, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, or artificial preservatives.

Directions

Take one to two capsules one to two times daily, or as directed by your healthcare practitioner.

Quality, Purity, Potency Guaranteed

All Unique Verve Formulas Meet or Exceed cGMP Quality Standards

cGMP = Current Good Manufacturing Practice certification means that every aspect of all Unique Verve manufacturing process has been examined, including laboratory/testing methods (for stability, potency and product formulation)

Made and Packaged in the USA in the temperature and humidity regulated facility. Stored in the temperature and humidity regulated facility to maintain efficacy of active ingredients.

Supplement Facts & Ingredients

Serving Size: 2 Capsules

Servings Per Container: 30 

Amount Per Serving %Daily Value

S-Acetyl Glutathione 200 mg**

Other Ingredients

HPMC (acid-resistant vegetarian capsule), microcrystalline cellulose, stearic acid, magnesium stearate, and silica.

Legal disclaimer

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare practitioner prior to use. Individuals taking medication should discuss potential interactions with their healthcare practitioner.