Double-strength GLA
Most formulas on the shelf provide 1000 mg of oil with roughly 115 mg of GLA. Each of our capsules delivers 1500 mg of evening primrose oil and 240 mg of GLA — a higher dose in every capsule.
Surspark · High-Strength GLA
Surspark Evening Primrose Oil 1500mg Capsules — Double-Strength GLA Omega-6
Each capsule delivers 1500 mg of cold-pressed evening primrose oil and 240 mg of naturally occurring gamma-linolenic acid (GLA). GLA is an omega-6 fatty acid your body cannot make on its own — it plays a key role in maintaining skin hydration and elasticity, and in supporting women's natural hormonal balance. Cold-pressed, non-GMO, soy-free, gluten-free. 120 softgels.
Third-party tested · Made in a GMP-certified facility
$29.90
/ 120 softgels · 240 mg GLA per capsule
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- 240 mg GLA per capsule — most standard formulas provide around 115 mg
- Cold-pressed extraction preserves natural potency and activity
- Non-GMO · Soy-free · Gluten-free · Dairy-free
- Made in the USA in a GMP-certified facility, third-party tested every batch
What evening primrose oil can do for you
GLA is one of the omega-6 fatty acids your body cannot synthesise on its own. Once absorbed it becomes part of your cell membranes — and skin cells, like every other tissue, rely on a steady supply of fatty acids to maintain their barrier function.
Skin hydration & elasticity
GLA is a key building block of the skin’s barrier lipids. Taken consistently, it helps maintain skin moisture and a soft, luminous appearance.
Hormonal balance for women
Designed for pre-menopausal women. Alongside a healthy lifestyle, it helps the body maintain its natural balance.
Cold-pressed
Pressed at low temperature rather than solvent-extracted, preserving the oil’s naturally occurring nutrients and activity.
Clean label
No GMOs, soy, gluten or dairy. No artificial colours, flavours or preservatives. Only what your body needs — nothing it doesn’t.
Made in the USA
Manufactured in a GMP-certified facility, third-party tested for purity and potency in every batch, and shipped from within the United States.
We put our evening primrose oil to the test
77 women aged 18–65 took 6 × 500 mg evening primrose oil capsules daily for 12 weeks. The results:
85%Felt happier with their skin
82%Felt more confident about their skin
87%Felt skin looked and felt less dry
85%Felt their skin was softer
84%Felt their skin was smoother
82%Felt skin looked beautifully smooth and nourished
Source: this consumer study was commissioned by Efamol and conducted by Cue Consumer Research between 18 September and 26 November 2020, with 77 women aged 18–65 taking 6 × 500 mg evening primrose oil capsules daily for 12 weeks. The findings relate to evening primrose oil as an ingredient — not to a clinical trial of the Surspark product itself.
Nourished from the inside out
Evening primrose oil is nature’s beauty ally. Its fatty acids help maintain skin moisture and elasticity — supporting a soft, hydrated, radiant-looking complexion over time.
What’s inside every capsule
Not just evening primrose oil — here is what each softgel delivers:
240 mgGamma-linolenic acid (GLA)
16%GLA content of the oil
1500 mgCold-pressed evening primrose oil
1×Capsule per daily serving
Purity and potency are third-party tested in every batch. Certificates of analysis are available on our Ingredients & Testing page.
40+ years of published research
Research on evening primrose oil and GLA spans decades, covering skin health, women’s health and inflammatory pathways. We translate that body of published science into the formulation decisions behind this bottle.
A clear difference
Not all evening primrose oil is created equal. Here is how the GLA content per capsule compares:
| Feature | Surspark | Typical 1000 mg formula |
|---|---|---|
| Evening primrose oil | 1500 mg | 1000 mg |
| GLA content | 240 mg | ~115 mg |
| GLA ratio | 16% | ~11% |
| Extraction method | Cold-pressed | Often solvent-extracted |
| Third-party testing | Every batch | Not guaranteed |
Full ingredient disclosure
No proprietary blends. Here is everything inside each softgel.
| Evening primrose oil (cold-pressed) | 1500 mg |
|---|---|
| of which gamma-linolenic acid (GLA) | 240 mg (16%) |
| Natural vitamin E | ✓ Present |
| Omega-6 essential fatty acids | ✓ Present |
| Non-GMO · Soy-free · Gluten-free · Dairy-free | ✓ Compliant |
| Artificial colours, flavours, preservatives | None |
| Format | 120 softgels · 60-day supply |
How to take it
GLA is not stored in the body the way some fats are — it needs to be taken consistently to maintain steady levels in your cell membranes.
Starting phase · first 12 weeks
3 × 1000mg
Three capsules daily with food, to build up your body’s GLA reserves.
Maintenance · after 12 weeks
1–2 × 1000mg
One to two capsules daily for the long term.
Take with food to reduce the chance of stomach upset. If you are pregnant, breastfeeding or taking anticoagulant medication, consult your doctor first.
Frequently asked questions
Why choose evening primrose oil?
Evening primrose oil is a natural source of GLA, an omega-6 essential fatty acid your body cannot produce on its own. It forms part of the phospholipids in your cell membranes, and skin barrier function — like other physiological processes — depends on a steady supply of fatty acids. When comparing products, the most useful figure is how much GLA each capsule provides, not just the total weight of the capsule.
How much GLA is in each capsule, and how does it compare?
Each capsule contains 1500 mg of evening primrose oil and delivers 240 mg of GLA (16% of the oil). For context, a typical 1000 mg formula provides around 115 mg of GLA per capsule. Converting GLA content into a cost-per-serving figure is more useful than comparing capsule size alone.
How long before I notice a difference?
GLA is gradually incorporated into cell membranes, and that process is measured in weeks. We suggest three capsules daily during the first 12 weeks to build up your reserves, then one to two capsules daily for maintenance. Consistent intake matters more than short bursts of higher doses.
When should I take it? Can I take it on an empty stomach?
Take it with or just after food. The fat-soluble nature of evening primrose oil aids absorption and can reduce the chance of stomach upset.
Is it suitable for vegetarians and vegans?
The formula is plant-based and contains no gelatine or other animal-derived ingredients, so it is suitable for those avoiding dairy as well. The softgel shell is plant-based; please refer to the packaging for the definitive ingredient list.
Is the consumer study you cite about the Surspark product?
No. The percentages quoted on this page come from a 77-person, 12-week consumer study commissioned by Efamol and conducted by Cue Consumer Research in 2020. Those findings relate to evening primrose oil as an ingredient, not to a clinical trial of the Surspark product itself. No independent clinical trial has been conducted on this specific Surspark formula, and all statements on this page are structure/function claims describing nutritional support.
How do you verify quality?
The product is manufactured in the USA in a GMP-certified facility, and every batch is third-party tested for potency, purity, heavy metals and microbiological safety. Certificates of analysis are available on our Ingredients & Testing page.
Pairs well with
A daily routine for women: one formula for hormonal balance, one for liver support.
