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zoyava myo-inositol & d-chiro inositol

Skip it

A small market ($18K/yr) — this niche doesn't clear our bar today.

Market size 4Growth 23Conversion 59Competition 24Returns 100Price range 83Avg price 95Brand share 34Review moat 35Quality gap 47

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$27.06

avg listing price — sweet spot $15–$100

Price range

Great$8.93–$49.00

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

Conversion

Good5.1%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,985.71

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay84%

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Growth

Bad-3.1%

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

Market size

Bad$18K

$18K/yr · 13K searches

According to Flapen's Amazon United States niche tracking, zoyava myo-inositol & d-chiro inositol is a $18K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Feb–Mar–Apr. Verdict: Skip it — 42/100.

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

zoyava myo-inositol & d-chiro inositol market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
$7K–$14K
units × avg price
Conversion rate
5.1%
Avg BSR
#487
Page quality
0%
Prime
100%
Sponsored
86%
Out of stock
0.0%
Avg brand age
38 months
Avg seller age
178 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 falling

Sellers

16

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

11%

  • Parrox40%
  • Zoyava15%
  • MEDCHOICE15%
  • JTEVEweu8%
  • ALongDeng7%
  • Inner Brightness5%
  • Open — no brand owns it (4 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 78 weeks — -3.1% search growth over the last 90 days.
4K3KSpike '25Spike '26FebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: Feb, Mar, Apr · busiest ÷ quietest = 8.4×

Top zoyava myo-inositol & d-chiro inositol search terms

  • zoyava myo inositol4K/yr
  • myo-inositol & d-chiro inositol berberine3K/yr
  • myo inositol berberine supplement2K/yr
  • zoyava myo-inositol & d-chiro inositol2K/yr
  • cortisoothe and myoinositol622/yr
  • zoyava myo-inositol638/yr
  • corti soothe and myo inositol740/yr
  • oyava myo-inositol & d-chiro inositol236/yr
  • myo-inositol d-chiro inositol berberine vitamin d3 k2105/yr
All search terms

Top zoyava myo-inositol & d-chiro inositol 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.

0%10%$2K20%$4K30%$5K40%$7K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about zoyava myo-inositol & d-chiro inositol

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

What buyers love

Quality-Overall11%

“In all, it is a good quality product that is easy to use”

Hormonal Balance8%

“it helped me with hormonal acne”

Vitamin7%

“Love these vitamins”

Fertility/Conception7%

“has helped getting me pregnant a few times”

Menstrual Issues6%

“Helped with menstrual cycle”

Efficiency5%

“Works ok”

Side Effects4%

“Best medication to help ease symptoms”

Taste-Overall4%

“Great taste”

Energy Level4%

“energy levels up”

Value For Money3%

“Good price”

What buyers complain about

Side Effects10%

“BUT I cant get past the daily headaches this product causes”

Dosage10%

“not appropriate dosages”

Functionality-Overall5%

“No Results”

Value For Money4%

“Not worth it”

Weight Loss4%

“No weight loss”

Acid Regulator/Stomach Ache Relief4%

“had terrible stomach pain”

Taste-Overall4%

“No taste”

Allergies3%

“BAD REACTION”

Stress/Anxiety3%

“It triggered my anxiety”

Vitamin2%

“nothing major, probably will stop taking the vitamins”

Top return reasons

Functionality-Overall25%
Quality-Overall13%
Certifications13%
Pain Relief-Overall13%
Size-Overall13%
Advertised Vs Actual Product13%
Blood Pressure13%

Common questions

Is zoyava myo-inositol & d-chiro inositol profitable to sell on Amazon United States?
The niche generates $18K/yr across 14 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is -3.1%. Flapen's verdict: Skip it (42/100).
How competitive is the zoyava myo-inositol & d-chiro inositol niche?
10 brands and 16 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in zoyava myo-inositol & d-chiro inositol?
Top complaints mined from reviews: Side Effects, Dosage, Functionality-Overall. The return rate is 0.0%.
When does demand for zoyava myo-inositol & d-chiro inositol peak?
Demand peaks in Feb–Mar–Apr; the busiest month runs 8.4× the quietest.
What does it cost to enter the zoyava myo-inositol & d-chiro inositol niche?
Listings span $8.93–$49.00; the average listing price is $27.06 (sweet spot $15–$100). The average incumbent carries 2,986 reviews — the moat a new listing must climb.