Is zinc citrate profitable to sell on Amazon United States?

The niche generates $122K/yr across 19 tracked products. 90-day search growth is -7.4%. Flapen's verdict: Skip it (44/100).

How competitive is the zinc citrate niche?

11 brands and 68 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in zinc citrate?

Top complaints mined from reviews: Dosage, Size-Overall, Quality-Overall. The return rate is 0.0%.

When does demand for zinc citrate peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the zinc citrate niche?

Listings span $3.00–$28.21; the average listing price is $11.20 (sweet spot $15–$100). The average incumbent carries 15,353 reviews — the moat a new listing must climb.

zinc citrate

Skip it

A deep review moat (15,353 avg reviews) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible13.0%

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

Price range

Good$3.00–$28.21

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

Avg price

Okay$11.20

avg listing price — sweet spot $15–$100

Brand share

Okay82%

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

Competition

Okay64%

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

Market size

Okay$122K

$122K/yr · 84K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-7.4%

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

Review moat

Bad15,352.74

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, zinc citrate is a $122K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 44/100.

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

zinc citrate market data

Units sold / yr: 13K–15K; avg 750–1,000/product
Revenue / yr: $140K–$168K; units × avg price
Conversion rate: 13.0%
Avg BSR: #335
Page quality: 0%
Prime: 100%
Sponsored: 68%
Out of stock: 0.0%
Avg brand age: 90 months
Avg seller age: 157 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

12%

Life Extension33%
Pure Encapsulations19%
Solgar12%
21st Century10%
Nutricost8%
BulkSupplements6%
Open — no brand owns it (5 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -7.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top zinc citrate search terms

zinc citrate40K/yr -6.7%8.8% conv.
life extension zinc15K/yr -10.1%17.6% conv.
zinc citrate 50mg11K/yr -21.3%11.7% conv.
zinc citrate 30mg6K/yr +28.2%15.8% conv.
zinc life extension4K/yr -6.4%16.9% conv.
citrato de zinc6K/yr -6.8%4.3% conv.
life extension zinc 50 mg2K/yr -30.6%37.7% conv.

All search terms

Top zinc citrate 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 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Life Extension Zinc Caps zinc 50 mg zinc Citrate Support The Bodys Immune defenses Ultra-absorbable Vegetarian Non-GMO Gluten-Free 90 Vegetarian Capsules

Life Extension$6.374.7★8,173 rev

Solgar Zinc Citrate Vegetable Capsules 100 Count Non-GMO Gluten Free and Kosher Supports Immune System Health Healthy Skin and Eyes Normal Taste and Vision

Solgar$10.044.8★3,146 rev

Pure Encapsulations Zinc (Citrate) - for Immune System Tissue Development & Metabolism* - Mineral Supplement with Enzymes - Highly Absorbable Zinc - Vegan & Non-GMO - 180 Capsules

Pure Encapsulations$28.214.8★1,909 rev

Nutricost Zinc Citrate (50mg) 120 Capsules Vegan Gluten-Free GMO-Free

Nutricost$12.654.6★54 rev

Pure Encapsulations Zinc (Citrate) - for Immune System Tissue Development & Metabolism* - Mineral Supplement with Enzymes - Highly Absorbable Zinc - Vegan & Non-GMO - 60 Capsules

Pure Encapsulations$12.284.8★1,909 rev

Newest

by launch date

Nutricost Zinc Citrate (50mg) 120 Capsules Vegan Gluten-Free GMO-Free

Nutricost$12.6554 rev

1y ago

BulkSupplements.com Zinc Citrate Capsules - Zinc Supplements Gluten Free - 30mg per Serving 1 Capsule per Serving 500 Count (Pack of 1)

BulkSupplements$17.02112 rev

2y ago

21st Century Healthcare Zinc Citrate Tablets 50mg 360 Count White

21st Century$8.55219 rev

4y ago

21st Century Healthcare Zinc Citrate Tablets 50mg 60 Count

21st Century$3.001,039 rev

5y ago

Natures Bounty Zinc 50mg Immune Support & Antioxidant Supplement Promotes Skin Health 1 Caplet Per Day Gluten Free 250 Vegetarian Caplets

Nature's Bounty$8.54215,458 rev

5y ago

What buyers say about zinc citrate

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

What buyers love

Quality-Overall22%

“Another great Pure product”

Value For Money12%

“reasonable price”

Advertised Vs Actual Product8%

“Item arrived as described”

Vitamin7%

“Best vitamins out there at a great price”

Ease Of Chewing/Swallowing5%

“easy to take with a sip of water”

Immunity Booster5%

“This has helped with boosting my immune system”

Cold Relief4%

“Helps colds get better”

Efficiency3%

“Effective”

Nutritional Content3%

“SUPPLEMENT”

Iron3%

“Zinc works”

What buyers complain about

Dosage9%

“Beware: dosage is too high”

Size-Overall6%

“Large”

Quality-Overall5%

“Cheap”

Ingredients-Overall5%

“Everything else, including Life Extensions citrus flavored Zinc, is out zinc gluconate”

Side Effects5%

“got sick immediately”

Regulates Digestion5%

“then intestinal pain”

Taste-Overall4%

“This is essentially a chalky tablet that does not taste good”

Iron4%

“I had a copper deficiency”

Acid Regulator/Stomach Ache Relief4%

“This is very harsh on your stomach”

Ease Of Use4%

“Cant use”

Top return reasons

Dosage35%

Functionality-Overall23%

Joint Pain8%

Taste-Overall8%

Vitamin8%

Strength8%

Contamination8%

Ease Of Chewing/Swallowing4%

Common questions

Is zinc citrate profitable to sell on Amazon United States?: The niche generates $122K/yr across 19 tracked products. 90-day search growth is -7.4%. Flapen's verdict: Skip it (44/100).
How competitive is the zinc citrate niche?: 11 brands and 68 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in zinc citrate?: Top complaints mined from reviews: Dosage, Size-Overall, Quality-Overall. The return rate is 0.0%.
When does demand for zinc citrate peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the zinc citrate niche?: Listings span $3.00–$28.21; the average listing price is $11.20 (sweet spot $15–$100). The average incumbent carries 15,353 reviews — the moat a new listing must climb.