Nac Supplement
Nac Supplement shows low returns (0.0%), but a concentrated shelf (top 5 take 81% of clicks) keeps it on the watch list.
Flapen Score
Is Nac Supplement profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Nac Supplement is a £760K/yr Amazon United Kingdom market (440K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 52/100.
Nac Supplement: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -16.5% over the last 90 days and 12.8% of searches end in a purchase.
£760K
revenue / yr
Who owns the niche?
The top 5 brands hold 81% of demand, so 19% of the market is open.
19%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 10 products
Top Nac Supplement products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
NAC N-Acetyl-Cysteine 600mg Capsules N-Acetyl Cysteine Nutritional Supplements 180 NAC Capsules - Nac Supplement High Bioavailability Amino Acid - Vegan Friendly - Made in UK by New Leaf
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 526
- Age
- 1y ago

NAC N-Acetyl-Cysteine 600mg | 150 Capsules | Vegan N-Acetyl-Cysteine Nutritional Supplements| 5 Months Supply* | Better Bioavailable & Letter Box Friendly | UK Manufactured by Prowise Healthcare
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 3,663
- Age
- 9y ago

NAC N-Acetyl-Cysteine 600mg - 180 Capsules (6 Months Supply) - 1 per Day - Vegan & GMP-Certified NAC Supplement - Precursor to Glutathione - N-Acetyl-Cysteine Nutritional Supplements - Made in Europe
- Price
- £13.87
- Rating
- 4.5/5
- Reviews
- 3,083
- Age
- 5y ago

Solgar NAC (N-Acetyl-L-Cysteine) 600 Mg Vegetable Capsules - Pack of 60 - Healthy Skin Hair and Nails - Vegan
- Price
- £15.16
- Rating
- 4.6/5
- Reviews
- 825
- Age
- 16y ago

NAC Supplement 1200mg Daily Serving 120 Vegan Capsules 2-Month Supply High Strength N-Acetyl-Cysteine for Daily Use UK Made Non-GMO Gluten-Free Dairy-Free High Bioavailability Formula
- Price
- £6.97
- Rating
- 4.3/5
- Reviews
- 147
- Age
- 5y ago
Trending
90-day click momentum
NAC N-Acetyl-Cysteine 600mg Capsules N-Acetyl Cysteine Nutritional Supplements 180 NAC Capsules - Nac Supplement High Bioavailability Amino Acid - Vegan Friendly - Made in UK by New Leaf
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 526
- Age
- 1y ago

Pure Encapsulations NAC 600mg - Pure N-Acetyl-L-Cysteine for Glutathione Synthesis Support - 90 Capsules
- Price
- £32.00
- Rating
- 4.5/5
- Reviews
- 137
- Age
- 8y ago

Solgar NAC (N-Acetyl-L-Cysteine) 600 Mg Vegetable Capsules - Pack of 60 - Healthy Skin Hair and Nails - Vegan
- Price
- £15.16
- Rating
- 4.6/5
- Reviews
- 825
- Age
- 16y ago

Toniiq 1300mg NAC - 2 Month Supply - Min. 98%+ Tested Purity - Ultra High Strength Bioavailable NAC Cysteine Supplement - 120 Vegetarian N Acetyl Cysteine Capsules -Lab Tested TQ
- Price
- £14.70
- Rating
- 4.6/5
- Reviews
- 1,247
- Age
- 1y ago

N-Acetyl Cysteine (NAC) 600 mg 120 Capsules - UK Manufactured and Suitable for Vegans & Vegetarians
- Price
- £11.92
- Rating
- 4.5/5
- Reviews
- 1,345
- Age
- 8y ago
Newest
by launch date
NAC N-Acetyl-Cysteine 600mg Capsules N-Acetyl Cysteine Nutritional Supplements 180 NAC Capsules - Nac Supplement High Bioavailability Amino Acid - Vegan Friendly - Made in UK by New Leaf
- Price
- £7.73
- Rating
- 4.5/5
- Reviews
- 526
- Age
- 1y ago

Toniiq 1300mg NAC - 2 Month Supply - Min. 98%+ Tested Purity - Ultra High Strength Bioavailable NAC Cysteine Supplement - 120 Vegetarian N Acetyl Cysteine Capsules -Lab Tested TQ
- Price
- £14.70
- Rating
- 4.6/5
- Reviews
- 1,247
- Age
- 1y ago

VitaBright NAC Supplement | 600mg | 180 Capsules | Acetylcysteine Nutritional Supplements | Swallow or Twist Open Capsules of Powder | Pure Clean NAC N-Acetyl-Cysteine Supplement
- Price
- £12.01
- Rating
- 4.5/5
- Reviews
- 648
- Age
- 2y ago

NAC N-Acetyl-Cysteine 600mg - 180 Capsules (6 Months Supply) - 1 per Day - Vegan & GMP-Certified NAC Supplement - Precursor to Glutathione - N-Acetyl-Cysteine Nutritional Supplements - Made in Europe
- Price
- £13.87
- Rating
- 4.5/5
- Reviews
- 3,083
- Age
- 5y ago

NAC Supplement 1200mg Daily Serving 120 Vegan Capsules 2-Month Supply High Strength N-Acetyl-Cysteine for Daily Use UK Made Non-GMO Gluten-Free Dairy-Free High Bioavailability Formula
- Price
- £6.97
- Rating
- 4.3/5
- Reviews
- 147
- Age
- 5y ago
Competition: brands, sellers & click share
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
Brands
10 falling
Sellers
26
Top-5 brand share
81%
Top 20: 100%
Top-5 click share
81%
Top 20: 100%
Open market
14%
- NEW LEAF PRODUCTS40%
- PH PROWISE Healthcare17%
- WeightWorld9%
- Solgar8%
- Multivita7%
- VitaBright5%
- Open — no brand owns it (4 brands, 14%)
Nac Supplement demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.5×
Top Nac Supplement search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- nac supplement185K/yr
- nac158K/yr
- augmented nac11K/yr
- nac n-acetyl-cysteine 600mg18K/yr
- nac 600mg10K/yr
- n acetyl cysteine13K/yr
- n-acetylcysteine10K/yr
- n-acetyl-cysteine nutritional supplements8K/yr
- l cysteine3K/yr
- n-acetyl cysteine6K/yr
What reviews say buyers love and hate about Nac Supplement
What buyers mention most, as a share of all reviews.
What buyers love
68% of reviews“Good product; Arrived in very good condition, happy about quality and price, thank you Amazon”
“worth the money”
“Breath better”
“Great quality supplement”
“with a straightforward 600mg serving”
What buyers complain about
61% of reviews“Smells like plastic”
“that would be a huge 2400mg dose”
“Poor quality”
“has some additives”
“seem to be getting heart burn”
Common Nac Supplement questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









