---
title: "Ph Probiotic for Women — $2.3M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/ph-probiotic-for-women"
last_updated: "2026-08-09T18:07:46.459Z"
locale: en
meta:
description: "Niche score 56/100 · $2.3M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $2.3M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Ph Probiotic for Women — $2.3M/yr Amazon US Niche (2026) - Flapen"
---
# **ph probiotic for women**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 95Growth 24Conversion 88Competition 44Returns 100Price range 95Avg price 95Brand share 0Review moat 25Quality gap 23
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$2.3M**
$2.3M/yr · 517K searches
**Avg price**
**Incredible****$43.85**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$23.18–$81.00**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****10.3%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****4,667.62**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-1.4%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, ph probiotic for women is a $2.3M/yr Amazon United States market (517K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 56/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ph probiotic for women market data**
- **Units sold / yr**
- **50K–60K**
- avg 2,500–3,000/product
- **Revenue / yr**
- **$2.2M–$2.6M**
- units × avg price
- **Conversion rate**
- **10.3%**
- **Avg BSR**
- **#178**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **90%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **63 months**
- **Avg seller age**
- **148 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**3 **▼falling
**Sellers**
**49**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 99%
**Open market**
**0%**
- Metagenics72% - Rephresh26% - O Positiv3%
## **Demand & seasonality**
Weekly Amazon search volume, last 98 weeks — -1.4% search growth over the last 90 days.
15K10KSpike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/us/health-household/ph-probiotic-for-women/trend)
## **Top ph probiotic for women search terms**
- **metagenics**230K/yr+14.9%3.7% conv. - **rephresh pro b probiotics for women**101K/yr-14.0%13.9% conv. - **metagenics ultra flora probiotic**66K/yr+6.7%12.8% conv. - **metagenics probiotics**28K/yr+0.2%8.2% conv. - **lactobacillus rhamnosus gr-1**10K/yr-15.5%2.3% conv. - **rephresh pro b**13K/yr-34.3%9.8% conv. - **lactobacillus rhamnosus gr-1 and lactobacillus reuteri rc-14**7K/yr-15.4%1.6% conv. - **metagenics probiotics for women**5K/yr+4.8%13.7% conv. - **ultra flora womens probiotic**7K/yr-23.4%9.1% conv. - **ultraflora womens probiotic**8K/yr-32.0%12.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/ph-probiotic-for-women/search-terms)
## **Top ph probiotic for women 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%$234K20%$467K30%$701K40%$934K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**RepHresh Pro-B Vaginal Probiotic Supplement pH Balance Probiotics for Women Balances Yeast and Bacteria to Maintain Feminine Health Daily Oral Capsules 30 Count**Rephresh**$23.18**4.6★23,682 rev](https://www.amazon.com/dp/B001FOPQQS) [2**Metagenics UltraFlora Womens Probiotic Shelf-Stable Supplement for Vaginal Health Yeast Balance & Urinary Comfort with Lactobacillus GR-1 & RC-14 Non-GMO 30 Capsules***Metagenics**$35.34**4.7★1,208 rev](https://www.amazon.com/dp/B00KGSAE6G) [3**Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules**Metagenics**$24.27**4.6★2,051 rev](https://www.amazon.com/dp/B0DCWW1JKM) [4**Metagenics UltraFlora Fiber Prebiotic & Probiotic - Dietary Fiber Supplement Powder - Supports Bowel Regularity Microbiome Balance & Gut Comfort - Orange Flavor - 30 Servings**Metagenics**$32.30**4.4★52 rev](https://www.amazon.com/dp/B0GGV64X6H) [5**Metagenics UltraFlora Complete Womens Probiotic - Shelf-Stable 5-in-1 Multi-Benefit Formula for Digestive Immune Vaginal Urogenital & Microbiome Health* - 30 Capsules**Metagenics**$38.76**4.7★318 rev](https://www.amazon.com/dp/B0DGQJXJXR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Metagenics UltraFlora Fiber Prebiotic & Probiotic - Dietary Fiber Supplement Powder - Supports Bowel Regularity Microbiome Balance & Gut Comfort - Orange Flavor - 30 Servings**Metagenics**$32.30**52 rev6mo ago](https://www.amazon.com/dp/B0GGV64X6H) [**Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules**Metagenics**$24.27**2,051 rev1y ago](https://www.amazon.com/dp/B0DCWW1JKM) [**Metagenics UltraFlora Complete Womens Probiotic - Shelf-Stable 5-in-1 Multi-Benefit Formula for Digestive Immune Vaginal Urogenital & Microbiome Health* - 30 Capsules**Metagenics**$38.76**318 rev1y ago](https://www.amazon.com/dp/B0DGQJXJXR) [**Metagenics UltraFlora Triplebiotic - Prebiotic Probiotic & Postbiotic Blend with Akkermansia for Gut Health* - Supports Digestive Balance Microbiome & Immune Function* - Shelf-Stable - 30 Capsules**Metagenics**$51.68**164 rev1y ago](https://www.amazon.com/dp/B0DCWMPZZ6) [**O Positiv URO Vaginal Probiotics for Women pH Balance with Prebiotics & Lactobacillus Vaginal Health Supplement Support Healthy Vaginal Odor & Flora 60 Count (Pack of 1) 1 Month Supply**O Positiv**$28.38**37,127 rev3y ago](https://www.amazon.com/dp/B0D5FZGY8W)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Metagenics UltraFlora Fiber Prebiotic & Probiotic - Dietary Fiber Supplement Powder - Supports Bowel Regularity Microbiome Balance & Gut Comfort - Orange Flavor - 30 Servings**Metagenics**$32.30**4.4★**▲ 231%**](https://www.amazon.com/dp/B0GGV64X6H) [**Metagenics PhytoMulti Multivitamin - 20+ Essential Vitamins & Minerals with Phytonutrients - Supports Healthy Aging Cellular Health Energy & Immune Function - Non-GMO & Gluten-Free - 60 Capsules**Metagenics**$39.07**4.7★**▲ 68%**](https://www.amazon.com/dp/B00ESWBE1U) [**Metagenics Vitamin D3 and Vitamin K2 5 000 IU with MK-7- Vitamin D3 with K2 for Immune Support Bone & Heart Health-Non-GMO Gluten-Free-60 Softgels**Metagenics**$27.18**4.7★**▲ 44%**](https://www.amazon.com/dp/B07Q599VMT) [**RepHresh Pro-B Probiotic Feminine Supplement - 30 ea (Pack of 2)**Rephresh**$48.03**4.7★**▲ 33%**](https://www.amazon.com/dp/B009SCXLIY) [**Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules**Metagenics**$24.27**4.6★**▲ 31%**](https://www.amazon.com/dp/B0DCWW1JKM)
**~~View all trending →~~**
## **What buyers say about ph probiotic for women**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Great product from a reliable company”*
**Vitamin**8%
*“Good Vitamin”*
**Efficiency**6%
*“Does the job”*
**Nutritional Content**5%
*“Best probiotic ever”*
**Advertised Vs Actual Product**5%
*“Arrived as described”*
**Value For Money**5%
*“Great value”*
**Smell**5%
*“Smells Great”*
**Regulates Digestion**3%
*“it's especially good for avoiding constipation”*
**Ease Of Chewing/Swallowing**3%
*“Easy to swallow”*
**Side Effects**3%
*“No side effects”*
### **What buyers complain about **
**Functionality-Overall**12%
*“Never worked”*
**Smell**11%
*“Strong perfume-like smell”*
**Value For Money**8%
*“NOT worth the price”*
**Side Effects**8%
*“Slight side effect tho”*
**Acid Regulator/Stomach Ache Relief**5%
*“STOMACH PAIN”*
**Allergies**5%
*“ITCHING”*
**Regulates Digestion**4%
*“Its making my acid reflux 10 times worse”*
**Taste-Overall**4%
*“No good there is aftertaste”*
**Dosage**3%
*“alas these drugs does absolutely nothing for me”*
**Size-Overall**2%
*“The capsules are very large”*
### **Top return reasons **
**Functionality-Overall**19%
**Acid Regulator/Stomach Ache Relief**11%
**Value For Money**7%
**Leak-Proof**6%
**Dosage**6%
**Joint Pain**6%
**Advertised Vs Actual Product**4%
**Iron**4%
**Ingredients-Overall**4%
**Product Condition**4%
## **Common questions**
- **Is ph probiotic for women profitable to sell on Amazon United States?**
- The niche generates $2.3M/yr across 21 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -1.4%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the ph probiotic for women niche?**
- 3 brands and 49 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in ph probiotic for women?**
- Top complaints mined from reviews: Functionality-Overall, Smell, Value For Money. The return rate is 0.0%.
- **When does demand for ph probiotic for women peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 2.9× the quietest.
- **What does it cost to enter the ph probiotic for women niche?**
- Listings span $23.18–$81.00; the average listing price is $43.85 (sweet spot $15–$100). The average incumbent carries 4,668 reviews — the moat a new listing must climb.
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