SKU: 93676611056

Natural Factors Ultra Prim Evening Primrose Oil - 500mg 90 Softgels

Sale price$14.39 Regular price$15.99
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Description

Natural Factors Ultra Prim Evening Primrose Oil - 500mg 90 SoftgelsNatural Factors OmegaFactors Ultra Prim Evening Primrose Oil is derived from the highest quality evening primrose (Oenothera biennis) seeds, and extracted by cold pressing (expeller pressing) without the use of hexane or other solvents. This ultra purified source of omega 6 essential fatty acids is highly stable and free of preservatives, offering 50 mg of gamma linolenic acid (GLA) and 360 mg of cis linoleic acid (LA) in each 500 mg softgel. The

 Natural Factors OmegaFactors Ultra Prim Evening Primrose Oil is derived from the highest quality evening primrose (Oenothera biennis) seeds, and extracted by cold pressing (expeller pressing) without the use of hexane or other solvents. This ultra-purified source of omega-6 essential fatty acids is highly stable and free of preservatives, offering 50 mg of gamma-linolenic acid (GLA) and 360 mg of cis-linoleic acid (LA) in each 500 mg softgel.

The essential fatty acids in Ultra Prim play an important role in the management of inflammation, cholesterol levels, hormonal balance, eye and skin health, and circulation. Ultra Prim may help prevent cardiovascular disease, reduce the risk of dangerous blood clots, and support healthy blood pressure.

Due to its beneficial effects on the immune system, cell membranes, and hormonal balance, GLA helps ease symptoms associated with premenstrual syndrome (PMS) and atopic eczema. GLA supports the health and appearance of the skin, can decrease inflammation, and even offers relief from dry eyes for contact lens wearers.

Evening primrose oil is an important source of GLA for anyone who wants to increase their intake of this omega-6 essential fatty acid.

Main selling features

  • Made from the highest quality evening primrose oil
  • Extracted by cold pressing (expeller pressing) without the use of external heat or harsh solvents
  • Ultra-purified to create a highly stable product without using preservatives
  • Provides therapeutic amounts of GLA to support optimum health

How it works

Evening primrose was called “the king’s cure-all” by early European settlers in North America and has long been used by Native Americans for its plethora of therapeutic effects. Modern science has discovered that many of these benefits appear connected to the concentration of GLA (up to 9%) found in evening primrose oil.

In the body GLA, a long chain fatty acid, is converted into a number of prostaglandins that influence numerous biological functions, including blood coagulation, blood vessel dilation, hormone production, cholesterol levels, inflammation, skin moisture, trans-epidermal water loss, and fatigue resistance. GLA has shown benefits for cardiovascular health, arthritis, skin disorders, premenstrual syndrome, and many more conditions.

A number of foods contain LA, the precursor to GLA, and the body can convert some LA to GLA with the help of various co-factors, including the enzyme delta-6-desaturase. However, a variety of other factors can hinder this process. People with diets high in sugar, alcohol, and trans or saturated fats; the elderly; and anyone with diabetes are especially at risk of having a low conversion of LA to GLA.

Ingredients

Medicinal ingredients

Each softgel contains:

Evening Primrose Oil (Oenothera biennis) (seed) 

500 mg

Gamma-linolenic acid 

50 mg

Cis-linoleic acid 

360 mg

Non-medicinal ingredients

Softgel (gelatin, glycerin, puri- fied water), vitamin E.

Suggested Usage

Recommended Adult Dose: 4-6 softgels daily or as directed by a health care practitioner. 

Shipping Notes
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SKU: 93676611056

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Jim
Omaha, US
★★★★★ 5
Fixed a Bead Sealing Issue
Size: 1-Gallon (128 oz)
For traction in snow, I recently installed new "agricultural" style lugged front tires on a Simplicity garden tractor from around 1980. The tractor looks like it's survived a war, evidently having had a hard life as a workhorse owned by a school district. The front rims are rusty, and I naively thought the beads of these thick tires would seal properly anyway. They didn't. The jug of sealant ships with a valve core removal tool. Removing and reinstalling the cores is a piece of cake if you've never done it. I pumped a generous amount of the product into each tire and then did a few fast laps in a grassy paddock. It's a Kohler 19HP twin and it's a bit of a rocket. 😎 One tire sealed, the other didn't, and there was still a faint hiss. I added more product to that side and repeated the process. It seemed to hold. The next day that side was flat again, so I added more sealant and this time it held. Based on this experience, I'd say that instead of strictly following what the instructions recommended as an amount per tire, keep adding product in increments until the tire holds air. It's good stuff and it works. Will the tire self-heal if I puncture it? I don't know yet. It saved me the headache of having to remount these small tires or install tubes.
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Reviewed in the United States on May 24, 2026
S
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shimshong
Birmingham, US
★★★★★ 5
Stop wasting your money on green slime or Fix-A-Flat or any of the other tire sealant
Size: 1-Gallon (128 oz)
Flat out is by far the best product on the market to fix flat tires and prevent flat tires. This will be the second gallon jug that I purchased that stuff on everything. all of my landscape equipment has it in every tire. And to paint and even better picture for you I have a scag mower that is 20 years old The tires are probably 18 years old ugly as could be and would not hold air until I put the flat out in it it has been sitting now for over a year and every tire still has air That's how good the stuff is. Don't just buy one gallon by two cuz it will get used
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Reviewed in the United States on July 11, 2025
A
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Amazon Customer
Chelsea, US
★★★★★ 5
John Deere 5x4 (gator)
Size: 4-Pack (128 oz), Size: 4-Pack (128 oz)
Excellent product. The John Deere 5x4 (Gator) in picture sat for ten years, the tires were flat, the front tire was the worse. To move this Gator from my neighbors place he had to load it on a trailer, he aired up the rear 4 tires but the front would air up and leak before he could move it. He put a make do wheel to get it moved to my place. shortly after unloading the rear 4 tires went flat. All were badly weathered. I read about a stop leak "FLATOUT" I ordered one bottle and put it in the front wheel and I aired it up, it held air for several hours. I called FLATOUT Support and told them I put 1/2 bottle in front tire and how it helped, He said it calls for a full bottle per tire so I added the rest of the FLATOUT. I bought four more bottles of FLATOUT and put those in all 4 tires, put air in and drove the unit a block. next day two tires were low so I finished putting FLATOUT in and aired the tires and drove two to three blocks. the weather snowed so I parked the Gator for two weeks, the tires never went flat. I checked the air pressure and had lost about 2-3 pounds, refilled with air and on a warm day drove the Gator about 2 miles. No flat tires. Note the front tire had a weathered crack 4 inches long where it sat folded for so many years and I saw where this product had sealed this leak and no air loss after two weeks of sitting.
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Reviewed in the United States on April 7, 2021
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Rachel
Waukegan, US
★★★★★ 5
Great tool
Size: 14" Chrome
This tool worked great. Super strong and easy to use. Super happy with the quality for the price.
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Reviewed in the United States on November 24, 2025
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Houston Dynamo
Lexington, US
★★★★★ 5
Perfect
Size: 14" Chrome
Great item
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