Is zinc glycinate profitable to sell on Amazon United States?

The niche generates $455K/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +0.0%. Flapen's verdict: Worth a look (51/100).

How competitive is the zinc glycinate niche?

12 brands and 43 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 83% of demand.

What do buyers complain about in zinc glycinate?

Top complaints mined from reviews: Dosage, Acid Regulator/Stomach Ache Relief, Size-Overall. The return rate is 0.0%.

When does demand for zinc glycinate peak?

Demand peaks in Jan–Apr; the busiest month runs 1.8× the quietest.

What does it cost to enter the zinc glycinate niche?

Listings span $8.54–$40.20; the average listing price is $16.72 (sweet spot $15–$100). The average incumbent carries 17,043 reviews — the moat a new listing must climb.

zinc glycinate

Worth a look

Shows low returns (0.0%), but a deep review moat (17,043 avg reviews) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible12.9%

search→purchase rate — share of searches ending in a sale

Avg price

Great$16.72

avg listing price — sweet spot $15–$100

Price range

Great$8.54–$40.20

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Good$455K

$455K/yr · 211K searches

Brand share

Okay83%

top-5 brand share — brands hold most of the demand

Competition

Okay70%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+0.0%

90-day search growth — must beat 0% to launch

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad17,042.81

avg incumbent reviews — the moat a new listing must climb

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, zinc glycinate is a $455K/yr Amazon United States market (211K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Jan–Apr. Verdict: Worth a look — 51/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

zinc glycinate market data

Units sold / yr: 20K–25K; avg 1,250–1,500/product
Revenue / yr: $334K–$418K; units × avg price
Conversion rate: 12.9%
Avg BSR: #116
Page quality: 0%
Prime: 100%
Sponsored: 88%
Out of stock: 0.0%
Avg brand age: 84 months
Avg seller age: 161 days

Competition & brand share

The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

70%

Top 20: 100%

Open market

13%

Bronson32%
NOW Foods24%
Nordic Naturals11%
THORNE9%
Pure Encapsulations6%
Nutricost4%
Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — +0.0% search growth over the last 90 days.

Peak months: Jan, Apr · busiest ÷ quietest = 1.8×

Open Trend

Top zinc glycinate search terms

zinc glycinate172K/yr -0.9%11.7% conv.
zinc glycinate 30 mg14K/yr -16.4%13.6% conv.
zinc glycinate supplements9K/yr +46.1%10.4% conv.
glicinato de zinc4K/yr +32.4%3.8% conv.
zinc glycinate 50 mg7K/yr -31.5%8.2% conv.
zink glycinate3K/yr +6.7%12.0% conv.
zinc glycinate 20 mg3K/yr +19.9%16.9% conv.

All search terms

Top zinc glycinate products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Bronson Zinc Glycinate 30mg Chelated Superior Absorption 100% Chelated Formula Non-GMO 120 Vegetarian Capsules

Bronson$10.034.6★236 rev

NOW Foods Supplements Zinc Glycinate with 250 mg Pumpkin Seed Oil Supports Prostate Health* 120 Softgels (Packaging May Vary)

NOW Foods$10.234.7★2,593 rev

Nordic Naturals Zinc Glycinate 20mg Highly Absorbable Supplements 60Count

Nordic Naturals$12.684.7★958 rev

Bronson Zinc Glycinate 30mg Chelated Superior Absorption 100% Chelated Formula Non-GMO 240 Vegetarian Capsules

Bronson$15.014.6★236 rev

THORNE - Zinc Bisglycinate 15 mg - Highly Absorbable Zinc Supplement - Supports Immune System Eye Skin & Reproductive Health* - Third-Party Certified - Gluten Dairy & Soy-Free - 60 Capsules

THORNE$14.644.8★884 rev

Newest

by launch date

Bronson Zinc Glycinate 30mg Chelated Superior Absorption 100% Chelated Formula Non-GMO 120 Vegetarian Capsules

Bronson$10.03236 rev

9mo ago

Bronson Zinc Glycinate 30mg Chelated Superior Absorption 100% Chelated Formula Non-GMO 240 Vegetarian Capsules

Bronson$15.01236 rev

9mo ago

Nutricost Zinc Bisglycinate Supplement (50mg) 120 Vegan Capsules GMO-Free

Nutricost$11.78126 rev

1y ago

BulkSupplements.com Zinc Glycinate Capsules - Zinc Supplement for Immune & Skin Support - 500 Capsules (Pack of 1)

BulkSupplements$18.903 rev

1y ago

XYMOGEN Zinc Glycinate - 20 mg Highly Absorbable Zinc Supplement - Supports Immune System & Whole Body Wellness - Vegetarian Gluten-Free & Non-GMO - 120 Capsules

XYMOGEN$32.10155 rev

3y ago

What buyers say about zinc glycinate

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall21%

“The quality seems consistent”

Value For Money11%

“reasonable price”

Vitamin10%

“Great vitamin for your health”

Advertised Vs Actual Product6%

“as advertised”

Ease Of Chewing/Swallowing5%

“Easy-to-take tablets for consistent nutritional support”

Immunity Booster4%

“This has helped with boosting my immune system”

Efficiency4%

“Does the job, no problems”

Dosage4%

“Great pills”

Acid Regulator/Stomach Ache Relief3%

“Does not give stomach aches”

Iron3%

“Zinc works”

What buyers complain about

Dosage14%

“Am not sure if the dosage I ordered was too high”

Acid Regulator/Stomach Ache Relief8%

“Upsets stomach”

Size-Overall7%

“Pill is too big”

Side Effects6%

“make me nauseous”

Ease Of Use5%

“The capsule cant be opened”

Functionality-Overall5%

“Doesn't work”

Quality-Overall4%

“Cheap”

Nutritional Content3%

“I don't actually have any evidence that these supplements are having any substantial benefits to my health”

Sleep Quality3%

“Makes me drowsy throughout the day”

Ease Of Chewing/Swallowing3%

“Very hard to swallow”

Top return reasons

Dosage38%

Functionality-Overall18%

Joint Pain6%

Smell6%

Strength6%

Vitamin6%

Certifications6%

Taste-Overall6%

Contamination6%