---
title: "Folinic Acid — $644K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/folinic-acid"
last_updated: "2026-08-10T15:04:05.197Z"
locale: en
meta:
description: "Niche score 50/100 · $644K/yr market. Brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $644K/yr market. Brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Folinic Acid — $644K/yr Amazon US Niche (2026) - Flapen"
---
# **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**
**Incredible****0.0%**
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**
**Great****306.82**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****7.8%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$644K**
$644K/yr · 288K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-5.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
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 ~~](https://flapen.com/research/methodology)
## **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 '26 seasonDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/health-household/folinic-acid/trend)
## **Top folinic acid search terms**
- **folinic acid**201K/yr-3.6%6.9% conv. - **folinic acid supplement**31K/yr-32.3%6.4% conv. - **acido folinico**10K/yr+65.3%1.5% conv. - **leucovorin folinic acid**14K/yr-35.4%2.7% conv. - **folinic acid seeking health**6K/yr+11.7%17.3% conv. - **cido folinico**4K/yr+90.8%1.7% conv. - **seeking health folinic acid**10K/yr-23.5%18.4% conv. - **folinic**4K/yr+5.9%6.8% conv. - **calcium folinate**4K/yr-7.6%2.4% conv. - **folinic plus**3K/yr-24.3%0.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/folinic-acid/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Seeking Health Folinic Acid - Methyl Free - Folinic Acid Supplement Supports Heart Health - Metabolically Active Alternative to Folate - 1360 mcg 60 Lozenges**Seeking Health**$19.96**4.7★732 rev](https://www.amazon.com/dp/B00UUEMZ4K) [2**Organic FolinicActive Kids - Folinic Acid + B12 B6 & B2 Cofactors - Gentle Methylation Support for Mood Energy & Cognition Age Adjustable Dosing for Kids 1-18 Non GMO Vegan Berry Flavor (60mL)**Triquetra Health**$23.61**4.7★294 rev](https://www.amazon.com/dp/B0G4S6KXDX) [3**FolinicActive Organic Folinic Acid Liquid Drops for Brain Heart Nerve & Mood Support - 1700 mcg with B12 B6 & Riboflavin B2 - Tri-Cofactor Absorption System -Berry Flavor Drops 1fl oz-60 Servings**Triquetra Health**$24.92**4.6★57 rev](https://www.amazon.com/dp/B0G4S69BKL) [4**Source Naturals MegaFolinic Bioactive Form of Folic Acid 800 mcg - 120 Tablets**Source Naturals**$11.93**4.8★640 rev](https://www.amazon.com/dp/B00185TJIK) [5**Dr. Green Mom Folinic Acid For Kids & Adults High Dose MTHFR-Friendly Folic Acid Alternative Organic Liquid Drops 500 mcg/Drop Vitamin B9 for Methylation Neurological & DNA Support 1 fl oz**Dr. Green Mom**$38.72**4.6★134 rev](https://www.amazon.com/dp/B0FWKTFTC3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**True reflectionz Folinic Acid Drops Kids & Adults - 500mcg Vitamin B9 Liquid Kids 60 mL | Methylation Support Supplement | Bioavailable Folate | Sugar Free Non-GMO Vegan | Gentle Methylation**True reflectionz**$23.32**3 rev3mo ago](https://www.amazon.com/dp/B0GX81BHRC) [**Organic FolinicActive Kids - Folinic Acid + B12 B6 & B2 Cofactors - Gentle Methylation Support for Mood Energy & Cognition Age Adjustable Dosing for Kids 1-18 Non GMO Vegan Berry Flavor (60mL)**Triquetra Health**$23.61**294 rev7mo ago](https://www.amazon.com/dp/B0G4S6KXDX) [**FolinicActive Organic Folinic Acid Liquid Drops for Brain Heart Nerve & Mood Support - 1700 mcg with B12 B6 & Riboflavin B2 - Tri-Cofactor Absorption System -Berry Flavor Drops 1fl oz-60 Servings**Triquetra Health**$24.92**57 rev7mo ago](https://www.amazon.com/dp/B0G4S69BKL) [**FolinicActive - Folinic Acid 1700 mcg Folate Supplement with Methylcobalamin B12 P-5-P B6 and Riboflavin B2 - Tri-Cofactor Absorption System for Brain Heart Nerve & Mood Support 60 vegan capsules**Triquetra Health**$24.94**57 rev7mo ago](https://www.amazon.com/dp/B0G4S6T2F9) [**Folinic Acid Drops Kids 800 mcg + L-Methylfolate + B12 +P5P B6 Gentle Methylation Great Taste Magnesium Glycinate Vitamin D3 & C Folate Support for Brain Focus Mood & Cellular Health 5-MTHF Drops**True reflectionz**$32.89**60 rev8mo ago](https://www.amazon.com/dp/B0G2TKFQ44)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**FolinicActive - Folinic Acid 1700 mcg Folate Supplement with Methylcobalamin B12 P-5-P B6 and Riboflavin B2 - Tri-Cofactor Absorption System for Brain Heart Nerve & Mood Support 60 vegan capsules**Triquetra Health**$24.94**4.6★**▲ 307%**](https://www.amazon.com/dp/B0G4S6T2F9) [**True reflectionz Folinic Acid Drops Kids & Adults - 500mcg Vitamin B9 Liquid Kids 60 mL | Methylation Support Supplement | Bioavailable Folate | Sugar Free Non-GMO Vegan | Gentle Methylation**True reflectionz**$23.32**5.0★**▲ 307%**](https://www.amazon.com/dp/B0GX81BHRC) [**FolinicActive Organic Folinic Acid Liquid Drops for Brain Heart Nerve & Mood Support - 1700 mcg with B12 B6 & Riboflavin B2 - Tri-Cofactor Absorption System -Berry Flavor Drops 1fl oz-60 Servings**Triquetra Health**$24.92**4.6★**▲ 267%**](https://www.amazon.com/dp/B0G4S69BKL) [**Organic FolinicActive Kids - Folinic Acid + B12 B6 & B2 Cofactors - Gentle Methylation Support for Mood Energy & Cognition Age Adjustable Dosing for Kids 1-18 Non GMO Vegan Berry Flavor (60mL)**Triquetra Health**$23.61**4.7★**▲ 154%**](https://www.amazon.com/dp/B0G4S6KXDX) [**Dr. Green Mom Folinic Acid For Kids & Adults High Dose MTHFR-Friendly Folic Acid Alternative Organic Liquid Drops 500 mcg/Drop Vitamin B9 for Methylation Neurological & DNA Support 1 fl oz**Dr. Green Mom**$38.72**4.6★**▲ 32%**](https://www.amazon.com/dp/B0FWKTFTC3)
**~~View all trending →~~**
## **What buyers say about folinic acid**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**14%
*“I appreciate the consistent quality”*
**Vitamin**12%
*“Good balance of vitamins”*
**Taste-Overall**7%
*“They said it tastes like candy”*
**Ease Of Use**6%
*“easy to manage”*
**Flavor**5%
*“Good flavor”*
**Energy Level**4%
*“It seems to help with my energy levels”*
**Ingredients-Overall**4%
*“the ingredients are simple”*
**Focus Enhancement**4%
*“I can focus more”*
**Dosage**3%
*“The right dosage”*
**Efficiency**3%
*“Works good”*
### **What buyers complain about **
**Value For Money**9%
*“Not at all worth the exorbitant price”*
**Taste-Overall**6%
*“the taste of this is vile”*
**Dosage**4%
*“Please make a higher dose”*
**Acid Regulator/Stomach Ache Relief**3%
*“Gave my child horrible constipation”*
**Smell**3%
*“It has a strong smell and tastes bad”*
**Vitamin**2%
*“I really wish products wouldn't contain large doses on b vitamins though”*
**Leak-Proof**2%
*“unfortunately I won't be able to use it because the bottle came damaged and leaking”*
**Stress/Anxiety**2%
*“Finding a bioavailable folate supplement that doesnt trigger the jitters or anxiety can be a real balancing act”*
**Color**2%
*“my only problem is the colour of the pee”*
**Sleep Quality**2%
*“it make my kiddos not sleep”*
### **Top return reasons **
**Heart Health**25%
**Vitamin**25%
**Strength**25%
**Leak-Proof**25%
## **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.
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