Is optizinc profitable to sell on Amazon United States?

The niche generates $90K/yr across 8 tracked products. 90-day search growth is -5.1%. Flapen's verdict: Skip it (38/100).

How competitive is the optizinc niche?

4 brands and 25 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in optizinc?

Top complaints mined from reviews: Side Effects, Smell, Nutritional Content. The return rate is 0.0%.

When does demand for optizinc peak?

Demand peaks in Feb; the busiest month runs 1.5× the quietest.

What does it cost to enter the optizinc niche?

Listings span $5.81–$23.89; the average listing price is $14.06 (sweet spot $15–$100). The average incumbent carries 1,290 reviews — the moat a new listing must climb.

optizinc

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible20.3%

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

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Good$14.06

avg listing price — sweet spot $15–$100

Review moat

Good1,290.25

avg incumbent reviews — the moat a new listing must climb

Price range

Okay$5.81–$23.89

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

Market size

Bad$90K

$90K/yr · 32K searches

Growth

Bad-5.1%

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

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

Competition

Bad92%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, optizinc is a $90K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb. Verdict: Skip it — 38/100.

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

optizinc market data

Units sold / yr: 6K–8K; avg 500–750/product
Revenue / yr: $84K–$112K; units × avg price
Conversion rate: 20.3%
Avg BSR: #492
Page quality: 0%
Prime: 88%
Sponsored: 50%
Out of stock: 0.0%
Avg brand age: 102 months
Avg seller age: 163 days

Competition & brand share

The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

92%

Top 20: 100%

Open market

Source Naturals52%
NOW Foods34%
SOLARAY9%
Douglas Laboratories5%

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -5.1% search growth over the last 90 days.

Peak months: Feb · busiest ÷ quietest = 1.5×

Open Trend

Top optizinc search terms

optizinc20K/yr -3.2%17.7% conv.
opti zinc3K/yr -16.2%23.8% conv.
l optizinc3K/yr -21.7%22.0% conv.
l-optizinc3K/yr -7.6%21.9% conv.
optizinc 30mg2K/yr +26.9%27.7% conv.

All search terms

Top optizinc 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 8 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Source Naturals OptiZinc Zinc Methionine Sulfate Complex - 60 Tablets

Source Naturals$5.814.8★2,291 rev

NOW Foods Supplements L-OptiZinc 30 mg with Copper Highly Bioavailable Form Immune Support* 100 Veg Capsules

NOW Foods$8.334.6★1,666 rev

Source Naturals OptiZinc Zinc Methionine Sulfate Complex - 120 Tablets

Source Naturals$10.814.8★2,291 rev

SOLARAY OptiZinc 30mg Immune Support Supplement - Zinc Supplements for Men and Women w/Vitamin B6 - Strong Bones and Skin Health Support - High Absorption - 60-Day Guarantee 60 Servings 60 VegCaps

SOLARAY$8.734.8★802 rev

Douglas Laboratories Opti Zinc 30 mg. | Zinc Monomethionine Supports Immune Function and Healthy Skin | 90 Capsules

Douglas Laboratories$18.884.6★121 rev

Newest

by launch date

Douglas Laboratories Opti Zinc 30 mg. | Zinc Monomethionine Supports Immune Function and Healthy Skin | 90 Capsules

Douglas Laboratories$18.88121 rev

16y ago

NOW Opti L-zinc 30mg 100 Capsules (Pack of 3)

NOW Foods$23.89334 rev

17y ago

Now Foods: L-Optizinc Immune Support 30 mg 100 Caps (2 pack)

NOW Foods$16.52526 rev

19y ago

SOLARAY OptiZinc 30mg Immune Support Supplement - Zinc Supplements for Men and Women w/Vitamin B6 - Strong Bones and Skin Health Support - High Absorption - 60-Day Guarantee 60 Servings 60 VegCaps

SOLARAY$8.73802 rev

20y ago

Source Naturals OptiZinc Zinc Methionine Sulfate Complex - 120 Tablets

Source Naturals$10.812,291 rev

22y ago

What buyers say about optizinc

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

What buyers love

Quality-Overall20%

“Its a consistent, high-quality supplement from a brand I trust for purity and potency”

Skin Health18%

“Helps with oily acne skin”

Value For Money14%

“Great price point too”

Natural Ingredients9%

“I like this Source Naturals Zinc”

Durability9%

“We have been taking this for years”

Efficiency9%

“Effective”

Vitamin4%

“Highly bioavailable approach to daily mineral supplementation”

Nutritional Content3%

“Its a consistent, high-quality supplement from a brand I trust for purity and potency”

Immunity Booster2%

“Great Zinc - have been on for years now and I take it for my immune support and for stubborn acne”

Acid Regulator/Stomach Ache Relief2%

“So make sure you take with a good meal maybe your high carb meal of the day so its easy on your stomach”

What buyers complain about

Side Effects17%

“dont know it it has any effect”

Smell17%

“Inedible - horrible smell and taste, couldn't get them down”

Nutritional Content8%

“Research maltodextrin and you will find that it can negatively impact gut health and causes a rapid, sharp spike in blood sugar and insulin levels”

Skin Health8%

“Acne”

Ingredients-Overall8%

“I didn't realize this contained maltodextrin until I received it”

Acid Regulator/Stomach Ache Relief8%

“I was thinking to myself Why the hell is my stomach hurting so bad”

Size-Overall3%

“The tablets are small”

Absorbency2%

“less absorbable inorganic salts like zinc oxide or zinc sulfate”

Common questions

Is optizinc profitable to sell on Amazon United States?: The niche generates $90K/yr across 8 tracked products. 90-day search growth is -5.1%. Flapen's verdict: Skip it (38/100).
How competitive is the optizinc niche?: 4 brands and 25 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in optizinc?: Top complaints mined from reviews: Side Effects, Smell, Nutritional Content. The return rate is 0.0%.
When does demand for optizinc peak?: Demand peaks in Feb; the busiest month runs 1.5× the quietest.
What does it cost to enter the optizinc niche?: Listings span $5.81–$23.89; the average listing price is $14.06 (sweet spot $15–$100). The average incumbent carries 1,290 reviews — the moat a new listing must climb.