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50

folinic acid

Worth a look

Shows low returns (0.0%), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.

Market size 66Growth 22Conversion 78Competition 16Returns 100Price range 87Avg price 95Brand share 8Review moat 85Quality gap 23

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$28.52

avg listing price — sweet spot $15–$100

Price range

Great$7.86–$79.82

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

Review moat

Great306.82

avg incumbent reviews — the moat a new listing must climb

Conversion

Great7.8%

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

Market size

Good$644K

$644K/yr · 288K searches

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-5.1%

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

Competition

Bad81%

top-5 click share — a locked-up shelf

Brand share

Bad97%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, folinic acid is a $644K/yr Amazon United States market (288K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Sep–Oct. Verdict: Worth a look — 50/100.

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

folinic acid market data

Units sold / yr
15K–20K
avg 1,500–2,000/product
Revenue / yr
$428K–$570K
units × avg price
Conversion rate
7.8%
Avg BSR
#1,192
Page quality
0%
Prime
100%
Sponsored
91%
Out of stock
0.6%
Avg brand age
93 months
Avg seller age
158 days

Competition & brand share

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

13

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

81%

Top 20: 100%

Open market

0%

  • Triquetra Health38%
  • Seeking Health36%
  • Source Naturals11%
  • Dr. Green Mom8%
  • True reflectionz4%
  • Spectrum Awakening3%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -5.1% search growth over the last 90 days.
30K20KHoliday '24Spike '25Spike '26DecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 2.4×

Top folinic acid search terms

  • folinic acid201K/yr
  • folinic acid supplement31K/yr
  • acido folinico10K/yr
  • leucovorin folinic acid14K/yr
  • folinic acid seeking health6K/yr
  • cido folinico4K/yr
  • seeking health folinic acid10K/yr
  • folinic4K/yr
  • calcium folinate4K/yr
  • folinic plus3K/yr
All search terms

Top folinic acid 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%$64K20%$129K30%$193K40%$257K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

What buyers say about folinic acid

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

What buyers love

Quality-Overall14%

“I appreciate the consistent quality”

Vitamin12%

“Good balance of vitamins”

Taste-Overall7%

“They said it tastes like candy”

Ease Of Use6%

“easy to manage”

Flavor5%

“Good flavor”

Energy Level4%

“It seems to help with my energy levels”

Ingredients-Overall4%

“the ingredients are simple”

Focus Enhancement4%

“I can focus more”

Dosage3%

“The right dosage”

Efficiency3%

“Works good”

What buyers complain about

Value For Money9%

“Not at all worth the exorbitant price”

Taste-Overall6%

“the taste of this is vile”

Dosage4%

“Please make a higher dose”

Acid Regulator/Stomach Ache Relief3%

“Gave my child horrible constipation”

Smell3%

“It has a strong smell and tastes bad”

Vitamin2%

“I really wish products wouldn't contain large doses on b vitamins though”

Leak-Proof2%

“unfortunately I won't be able to use it because the bottle came damaged and leaking”

Stress/Anxiety2%

“Finding a bioavailable folate supplement that doesnt trigger the jitters or anxiety can be a real balancing act”

Color2%

“my only problem is the colour of the pee”

Sleep Quality2%

“it make my kiddos not sleep”

Top return reasons

Heart Health25%
Vitamin25%
Strength25%
Leak-Proof25%

Common questions

Is folinic acid profitable to sell on Amazon United States?
The niche generates $644K/yr across 11 tracked products. 5 of 7 products launched in the last 360 days are still selling. 90-day search growth is -5.1%. Flapen's verdict: Worth a look (50/100).
How competitive is the folinic acid niche?
6 brands and 13 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in folinic acid?
Top complaints mined from reviews: Value For Money, Taste-Overall, Dosage. The return rate is 0.0%.
When does demand for folinic acid peak?
Demand peaks in Sep–Oct; the busiest month runs 2.4× the quietest.
What does it cost to enter the folinic acid niche?
Listings span $7.86–$79.82; the average listing price is $28.52 (sweet spot $15–$100). The average incumbent carries 307 reviews — the moat a new listing must climb.