---
title: "Korean Supplements — $16K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/korean-supplements"
last_updated: "2026-08-12T15:04:27.389Z"
locale: en
meta:
description: "Amazon product research for korean supplements: $16K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for korean supplements: $16K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Korean Supplements — $16K/mo Amazon US Product Research"
---
# **Korean Supplements**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 38Growth 28Conversion 36Competition 0Returns 100Price range 95Avg price 95Brand share 0Review moat 67Quality gap 82
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$41.59**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$20.51–$88.82**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****809.8**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****$188K**
$188K/yr · 156K searches
**Conversion**
**Okay****2.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+2.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
## **Is korean supplements profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, korean supplements is a $188K/yr Amazon United States market (156K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 44/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **korean supplements market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **4K–5K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$166K–$208K**
- units × avg price
- **Conversion rate**
- **2.9%**
- **Avg BSR**
- **#189**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **139 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**75**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- ESTHER FORMULA84% - Rhionia6% - Generic5% - FOODOLOGY5%
## **korean supplements demand & seasonality**
Weekly Amazon search volume, last 50 weeks — +2.6% search growth over the last 90 days.
18K13KSpike '25Holiday '25Spike '26Aug '25Oct '25Nov '25Jan '26Mar '26May '26
[**Open Trend **](https://flapen.com/research/us/health-household/korean-supplements/trend)
## **Top korean supplements search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **korean supplements**30K/yr+12.8%0.1% conv. - **esther formula glutathione**23K/yr+21.2%3.7% conv. - **glutathione strips**17K/yr+23.2%2.8% conv. - **liposomal glutathione strips**6K/yr+9.5%3.5% conv. - **glutathione strips korean**6K/yr+13.7%3.5% conv. - **lyuh esther liposomal glutathione direct**4K/yr+109.0%5.8% conv. - **esther formula**9K/yr-21.5%2.7% conv. - **esther formula liposomal glutathione strips**3K/yr+56.4%5.9% conv. - **korean vitamin**8K/yr-5.1%0.1% conv. - **korean supplements for women**7K/yr+18.3%0.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/korean-supplements/search-terms)
## **Top korean supplements products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%25%$47K50%$94K75%$141K100%$188K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**ESTHER FORMULA Liposomal Glutathione Strips (30 ct) - Glutathione Direct Antioxidant Support Skin Glow Support | Sublingual Fast-Absorbing Oral Strips | Korean Supplements**ESTHER FORMULA**$34.88**4.1★498 rev](https://www.amazon.com/dp/B0DZNT7SWG) [2**Rhionia Liposomal Pure Glutathione Film Strips 370mg X 30 / 150mg Glutathione Supplement 90% Purity Melt-in-Mouth Format**Rhionia**$28.70**4.2★39 rev](https://www.amazon.com/dp/B0FXW4CNKY) [3**Liposomal Glutathione Ever Film(367mg 30Strips) Glutathione Strips Enhanced-Absorption**Generic**$35.06**4.4★35 rev](https://www.amazon.com/dp/B0DG2KZHBP) [4**FOODOLOGY Coleology Cutting Stick Jelly (Pomegranate) Dietary Fiber Supplement for Healthy Weight Management Chia Seeds & Garcinia Cambogia Korean Beauty with Collagen 10 Sticks**FOODOLOGY**$20.51**4.2★2,979 rev](https://www.amazon.com/dp/B0C9JPQP4M) [5**ESTHER FORMULA Liposomal Glutathione Strips (90 ct) - Glutathione Direct Antioxidant Support Skin Glow Support Sublingual Fast-Absorbing Oral Strips Korean Supplements**ESTHER FORMULA**$88.82**4.1★498 rev](https://www.amazon.com/dp/B0FR8Z7D81)
### **Newest**
by launch date
[**Rhionia Liposomal Pure Glutathione Film Strips 370mg X 30 / 150mg Glutathione Supplement 90% Purity Melt-in-Mouth Format**Rhionia**$28.70**39 rev9mo ago](https://www.amazon.com/dp/B0FXW4CNKY) [**ESTHER FORMULA Liposomal Glutathione Strips (90 ct) - Glutathione Direct Antioxidant Support Skin Glow Support Sublingual Fast-Absorbing Oral Strips Korean Supplements**ESTHER FORMULA**$88.82**498 rev10mo ago](https://www.amazon.com/dp/B0FR8Z7D81) [**ESTHER FORMULA Liposomal Glutathione Strips (30 ct) - Glutathione Direct Antioxidant Support Skin Glow Support | Sublingual Fast-Absorbing Oral Strips | Korean Supplements**ESTHER FORMULA**$34.88**498 rev1y ago](https://www.amazon.com/dp/B0DZNT7SWG) [**Liposomal Glutathione Ever Film(367mg 30Strips) Glutathione Strips Enhanced-Absorption**Generic**$35.06**35 rev1y ago](https://www.amazon.com/dp/B0DG2KZHBP) [**FOODOLOGY Coleology Cutting Stick Jelly (Pomegranate) Dietary Fiber Supplement for Healthy Weight Management Chia Seeds & Garcinia Cambogia Korean Beauty with Collagen 10 Sticks**FOODOLOGY**$20.51**2,979 rev2y ago](https://www.amazon.com/dp/B0C9JPQP4M)
### **Trending**
90-day click momentum
[**Rhionia Liposomal Pure Glutathione Film Strips 370mg X 30 / 150mg Glutathione Supplement 90% Purity Melt-in-Mouth Format**Rhionia**$28.70**4.2★**▲ 15%**](https://www.amazon.com/dp/B0FXW4CNKY) [**ESTHER FORMULA Liposomal Glutathione Strips (90 ct) - Glutathione Direct Antioxidant Support Skin Glow Support Sublingual Fast-Absorbing Oral Strips Korean Supplements**ESTHER FORMULA**$88.82**4.1★**▲ 10%**](https://www.amazon.com/dp/B0FR8Z7D81) [**ESTHER FORMULA Liposomal Glutathione Strips (30 ct) - Glutathione Direct Antioxidant Support Skin Glow Support | Sublingual Fast-Absorbing Oral Strips | Korean Supplements**ESTHER FORMULA**$34.88**4.1★**— 3%**](https://www.amazon.com/dp/B0DZNT7SWG) [**Liposomal Glutathione Ever Film(367mg 30Strips) Glutathione Strips Enhanced-Absorption**Generic**$35.06**4.4★**▼ 23%**](https://www.amazon.com/dp/B0DG2KZHBP) [**FOODOLOGY Coleology Cutting Stick Jelly (Pomegranate) Dietary Fiber Supplement for Healthy Weight Management Chia Seeds & Garcinia Cambogia Korean Beauty with Collagen 10 Sticks**FOODOLOGY**$20.51**4.2★**▼ 31%**](https://www.amazon.com/dp/B0C9JPQP4M)
## **What reviews say buyers love and hate about korean supplements**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**33%
*“GOOD TASTE”*
**Quality-Overall**9%
*“This a great quality supplement”*
**Flavor**8%
*“Good flavor”*
**Ease Of Use**7%
*“Very convenient”*
**Advertised Vs Actual Product**4%
*“As described”*
**Regulates Digestion**3%
*“Digestion help”*
**Nutritional Content**2%
*“Nutrition that is good for my skin”*
**Energy Level**2%
*“I just feel like I have more energy in general”*
**Texture/Consistency-Overall**2%
*“The consistency”*
**Weight Loss**2%
*“it also fits well into my weight loss routine”*
### **What buyers complain about **
**Functionality-Overall**18%
*“No results”*
**Taste-Overall**12%
*“Taste is pretty strong”*
**Value For Money**7%
*“not worth it”*
**Nutritional Content**6%
*“seeing that it doesnt have any protein in it”*
**Side Effects**5%
*“Serious potential side effects”*
**Advertised Vs Actual Product**4%
*“Didn't do what it describes”*
**Regulates Digestion**4%
*“Stomach ache bloating constipation”*
**Allergies**4%
*“I was allergic to some of the ingredients”*
**Weight Loss**3%
*“I really doubt that these do anything for weight loss”*
**Ingredients-Overall**2%
*“This substance has a chemical taste”*
### **Top return reasons **
**Ingredients-Overall**50%
**Functionality-Overall**17%
**Certifications**17%
**Ease Of Use**8%
**Product Condition**8%
## **Common korean supplements questions**
- **Is korean supplements profitable to sell on Amazon United States?**
- The niche generates $188K/yr across 5 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +2.6%. Flapen's verdict: Skip it (44/100).
- **How competitive is the korean supplements niche?**
- 4 brands and 75 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in korean supplements?**
- Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Value For Money. The return rate is 0.1%.
- **What does it cost to enter the korean supplements niche?**
- Listings span $20.51–$88.82; the average listing price is $41.59 (sweet spot $15–$100). The average incumbent carries 810 reviews — the moat a new listing must climb.
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