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Now Supplements, NAC Quercetin and Zinc, Respiratory Support*, 90 Veg Caps
✅ In stock
📉 Price recently dropped
F
Grade
Analysis Confidence
88%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 23, 2026 8:01 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 🏷️The retail sticker price has been slashed by 45% — a steep markdown from the official listing.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.
How We Scored This Deal
Price Competitiveness
0.81/28
Recent Value
0/22
Market Standing
11.84/20
Deal Strength
0/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
Amazon.com
🚚 Shipping
Free Shipping
Product Details
✓N-acetyl cysteine (NAC) is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and promotes the formation of glutathione.* Glutathione is a powerful free radical scavenging compound that also helps to maintain normal, balanced immune system function*
✓Quercetin is a naturally occurring free radical neutralizer that supports healthy seasonal immune system function.* Laboratory studies have demonstrated that quercetin can also help to promote normal respiratory function*
✓Zinc has been included for its immune-supporting properties*
✓GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
✓Founded in 1968 by Elwood Richard, NOW is one of the largest independent, family- and employee-owned manufacturers of natural products
⚙️ Specifications
Brand
NOW Foods
Item Form
Capsule
Primary Supplement Type
Quercetin
Unit Count
90 Count
Flavor
Unflavored
Brand Name
NOW
Diet Type
Vegetarian
Product Benefits
Immune Support
Age Range Description
Adult
Container Type
Bottle
Dosage Form
Capsule
