evening primrose oil 500mg
Skip itA small market ($18K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great10.3%search→purchase rate — share of searches ending in a sale
Avg price
Great$18.04avg listing price — sweet spot $15–$100
Price range
Great$8.01–$37.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Review moat
Bad4,624.5avg incumbent reviews — the moat a new listing must climb
Growth
Bad-6.2%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad78%top-5 click share — a locked-up shelf
Market size
Bad$18K$18K/yr · 10K searches
According to Flapen's Amazon United States niche tracking, evening primrose oil 500mg is a $18K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Apr. Verdict: Skip it — 40/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
evening primrose oil 500mg market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $18K–$23K
- units × avg price
- Conversion rate
- 10.3%
- Avg BSR
- #221
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 64%
- Out of stock
- 0.0%
- Avg brand age
- 126 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 flat
Sellers
559
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
11%
- NOW Foods33%
- Solgar18%
- 365 by Whole Foods Market15%
- Sports Research13%
- Nature's Bounty5%
- Swanson5%
- Open — no brand owns it (5 brands, 11%)
Demand & seasonality
Weekly Amazon search volume, last 99 weeks — -6.2% search growth over the last 90 days.Peak months: Apr · busiest ÷ quietest = 1.9×
Top evening primrose oil 500mg search terms
- evening primrose oil 500mg8K/yr
- primrose oil capsules 500mg783/yr
- evening primrose oil capsules 500mg822/yr
Top evening primrose oil 500mg 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.
All 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Solgar Evening Primrose Oil 500 mg 180 Softgels - Promotes Healthy Skin & Cardiovascular Health - Nutritional Support for Women - Gluten Free Dairy Free - 180 Servings
Solgar$13.974.6★1,231 rev
NOW Foods Supplements Evening Primrose Oil 500 mg with Naturally Occurring GLA (Gamma-Linolenic Acid) 100 Softgels
NOW Foods$8.014.7★4,246 rev
NOW Foods Supplements Evening Primrose Oil 500 mg with Naturally Occurring GLA (Gamma-Linolenic Acid) 250 Softgels
NOW Foods$17.954.7★4,246 rev
365 by Whole Foods Market Evening Primrose Oil 500 mg 120 Count
365 by Whole Foods Market$16.034.7★223 rev
Sports Research Evening Primrose Oil (500mg) Cold-Pressed with No fillers or Artificial Ingredients Non-GMO Tested - Gluten & Soy Free (240 Liquid Softgels)
Sports Research$21.554.6★34,557 rev
Newest
by launch date
OmniBiotics Organic Evening Primrose Oil for Women Clinical Strength 1500mg per Capsule 10% GLA Cold-Pressed Non-GMO Hormone Balance for Women 120 Vegan Softgel Capsules
OmniBiotics$37.642,023 rev
Nutricost Evening Primrose Oil 1 300mg 120 Softgels Cold Pressed
Nutricost$17.614,747 rev
Sports Research Evening Primrose Oil (500mg) Cold-Pressed with No fillers or Artificial Ingredients Non-GMO Tested - Gluten & Soy Free (240 Liquid Softgels)
Sports Research$21.5534,557 rev
NOW Foods Supplements Evening Primrose Oil 1000 mg Cold Pressed Hexane Free Vegan Formula 90 Veg Softgels
NOW Foods$17.131,821 rev
365 by Whole Foods Market Evening Primrose Oil 500 mg 120 Count
365 by Whole Foods Market$16.03223 rev
Trending
90-day click momentumNOW Foods Supplements Evening Primrose Oil 1000 mg Cold Pressed Hexane Free Vegan Formula 90 Veg Softgels
NOW Foods$17.134.7★
Swanson Evening Primrose Oil (Omegatru) 500 Milligrams 100 Sgels
Swanson$13.074.8★
365 by Whole Foods Market Evening Primrose Oil 500 mg 120 Count
365 by Whole Foods Market$16.034.7★
NOW Foods Supplements Evening Primrose Oil 500 mg with Naturally Occurring GLA (Gamma-Linolenic Acid) 100 Softgels
NOW Foods$8.014.7★
Solgar Evening Primrose Oil 500 mg 180 Softgels - Promotes Healthy Skin & Cardiovascular Health - Nutritional Support for Women - Gluten Free Dairy Free - 180 Servings
Solgar$13.974.6★
What buyers say about evening primrose oil 500mg
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality, no bad taste and easy to swallow”
“Its the best if you are going through menopause”
“Very good deal on a highly rated EPO”
“Ive been taking these mostly for hormone balance and skin, and theyve been easy to stick with”
“That this product arrived as was described”
“A good addition to my daily vitamins”
“Good size and quality”
“Works Great”
“I can highly talk about the smell that it takes away no arm odor anymore thank you”
“Am strong”
What buyers complain about
“it usually costs more”
“I took these and it gave me a massive headache, blood vision, loss of peripheral vision and really freaked me out really badly”
“After a week of taking it I started breaking out every where my face my body”
“Caused too much negative issues with sleep and overall wellbeing”
“This one was a waste of my money no mater how many I took in a day it did not work”
“difficult to swallow due to size so I just break them open”
“However, it makes me slightly nauseous”
“The pill is on the larger side”
“So I wont get to use this supplement”
“This is not a good brand”
Top return reasons
Common questions
- Is evening primrose oil 500mg profitable to sell on Amazon United States?
- The niche generates $18K/yr across 14 tracked products. 90-day search growth is -6.2%. Flapen's verdict: Skip it (40/100).
- How competitive is the evening primrose oil 500mg niche?
- 11 brands and 559 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in evening primrose oil 500mg?
- Top complaints mined from reviews: Value For Money, Side Effects, Durability. The return rate is 0.0%.
- When does demand for evening primrose oil 500mg peak?
- Demand peaks in Apr; the busiest month runs 1.9× the quietest.
- What does it cost to enter the evening primrose oil 500mg niche?
- Listings span $8.01–$37.64; the average listing price is $18.04 (sweet spot $15–$100). The average incumbent carries 4,625 reviews — the moat a new listing must climb.