My Cart

0 items $0.00

You have no items in your shopping cart.

Free Shipping Orders $49 or More*

*USA including AK & HI, $49 minimum order after discounts are applied.
Excludes wholesale account members. Excludes wholesale sizes.

Unbeatable Prices Huge Product Selection, Great Service,

Promo - FREE T-Shirt with $100+ Purchase   
Add $100+ to Cart.  Select Style & Size on Cart Page.   *Excludes Wholesale Account Members.

Grapefruit Seed Extract Powder

* Required Fields

In stock

Price From: FROM $11.96

Ships tomorrow if ordered in the next 17 hours and 55 minutes!

Grapefruit Seed Extract Powder


  • Antioxidant
  • Contains Vitamins C & E
  • Promotes gastrointestinal health
  • Taste

  • Mixability

Grapefruit seed extract is a supplement known for its antioxidant properties. The seed of a grapefruit has components that make it up at a molecular level, including flavonoids (the chief source of the antioxidant properties), sources of Vitamin C and E, limonoids, sterols, citric acid and various minerals.


Serving Size & Timing

The suggested serving size for Grapefruit Seed Extract powder is 250mg to be taken two times daily, depending on intended effect. A serving of about 1/32 tsp in size will equal about 87mg, so taking about 3/32 tsp will yield just over 250mg total.

Nutritional Information

Supplement Facts

Serving size: 250 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
Grapefruit Seed Extract...250mg *
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten,corn and additives.

As a dietary supplement, take 250mg (3/32 tsp) twice daily, preferably with a meal or a glass of water, or as directed by a physician.

US Standard Measuring Spoons
Spoon Size(level) milligrams
1/32 teaspoon 86
1/16 teaspoon 173
1/8 teaspoon 347



This Grapefruit Seed Extract powder is considered food grade. It has no fillers of any kind and comes in the form of a gray powder.


As long as suggested serving size is adhered to, Grapefruit Seed Extract powder is perfectly safe to use. However, it is possible that this supplement can result in a host of unwanted drug interactions. While most effects will likely be minor, it is always best to talk about this supplement, or any supplement, with a doctor and obtain their opinion on it before use.


Grapefruit Seed Extract and Grape Seed Extract should not be confused. One is derived from actual grapefruit, whereas the other is sourced from red grapes.

Most people find it preferable to take grapefruit seed extract in capsule form, as this will get rid of any bitter taste. However, to make it more palatable, this powder may be mixed with fruit juices. To avoid a loss of potency, it is best to make sure to store this product in an area that is free from light, heat or moisture.

California residents: Click here for Proposition 65 warning.

Customer Reviews

Grapefruit seed extract
Very pleased with this product. Easy to use and digest. Helps to rid your gut of unwanted yeats and other issues. *

On 1/22/2019 Debbie said...

Great Mixability
This extract is a fine powder that tastes bitter when mixed with water but has no discernible taste when added to my morning green drink. I am hoping that this extract will help to lower my blood pressure. As with all the other products that I have purchased from this company the price is excellent and the fast shipping is a given.*

On 9/26/2018 Shirley said...

Great Mixability
This extract is a fine powder that tastes bitter when mixed with water but has no discernible taste when easily mixed into my morning green drink. I *

On 9/26/2018 Shirley said...

Grapefruit seed extract
Just received my order every thing arrived quickly and in good shape I havent tried this yet but plan to use it in skincare products.*

On 7/7/2018 Kathy said...

GSE powder
I just received this & tried it immediately. Within a few hours it alleviated stubborn & persistent symptoms from a UTI. I'm hoping ,if taken for several more days, it will eliminate the infection in it's entirety. Surely it's off to a good start. Taste is bitter, but amount you take is so small (1/4tsp) that it's easy to mask. I mixed it in Stevia & dumped it in about 1oz of coffee, then drank a large glass of water. You could stir it into 1/2 tsp of honey or preserves to achieve the same results.

Although well packaged as always, the zip top is nearly impossible for me to reseal so I had to tape bag shut after filling a small jar for convenience. Not a big deal, but I do think that bulksupplements could do away with these extremely poorly functioning zip lock bags rather than let you *think* you can reseal it. I tried for half an hour and then only got part of it closed,spilling in the process of course.. Won't try any more. Will just transfer each item I purchase to another bag or bottle and tape shut. (All bags are the same, regardless of what you purchase.) Still quite happy with product and would buy here again.*

On 3/2/2018 A Skibo said...

better than the liquid
for years I wanted to try this product but, its only been avail in liquid form. This dry form allow us to measure or better control over the portions. Where I would of never tried to use the liquid of internal purposes I will try this one. The main reason for grapefruit was to assist when making natural cosmetics. Grapefruit seed keeps the product from spoiling. *

On 12/6/2017 fadia said...

Why the Powder - Grapefruit Seed Extract Powder
Finding this in a powder was exceptional because it is easier to measure into wet drinks of all kinds. It is not as messy. The taste is smoother too. And as a health and anti-cancer protocol it is best as a powder when added to Inositol Hexaphosphate Powder and Modified Citrus Pectin taken without food. I use this first thing in the am and in between meals to balance the system and support internal digestive function: immune support.*

On 9/4/2017 Pouvre said...

Grapefruit seed extract
I have been using this powdered grapefruit seed extract for the first time.

In years past I used a liquid and was happy with both the efficacy and economy.

BS as usual beat the economy standard I was used to by a wide margin.

It takes so little and is so very safe.

I will be sure to reorder.

Thanks again to the great crew at BS.

You folks really rock!


On 3/16/2017 Danney said...

Best prices, top quality
The grapefruit seed extract is awesome, what more can you ask for than best prices, top quality and bulk quantity?

The only place to shop!*

On 3/6/2017 Peter said...

great stuff
Soon after the grapefruit seed powder arrived we purchased a used washing machine that had been in storage for 2 years and was very moldy. We made a grapefruit seed tea and wiped the washer down with it inside and out. The washer is now like new. We use this powder to treat our clothes, food and ourselves. Bulk Supplements price and quality is the best! *

On 11/22/2016 Dave said...

I ordered the grapefruit seed extract this is the highest milligram I found on the market and I was surprised how fast they sent out within half an hour from purchase the price is also the cheapest from everywhere*

On 11/14/2016 sarah said...

Really good stuff
I bought this to help rid a recurrent UTI. It has worked. I had tried many things - colloidal silver, lots of raw garlic, even d-mannose (which has worked before). The GSE did the job. It really doesn't taste bad. It's very fresh. MIxes poorly in water, clumps, but I stirred it to keep it suspended and then managed to drink it. I think it might be very refreshing mixed in seltzer. Like others I have a problem resealing the bag and have not come up with a solution except I may transfer it to a tightly capped jar. I took 1/2 tsp 3 times daily which is more than the instructions say. Good luck.*

On 10/6/2016 Penelope said...

Extremely versatile and helpful for almost all health needs
It doesn’t cure anything but sure does help me, my cat, my garden and things around the house.I was very sick and got myself well by eating natural food and eliminating as many toxins in my house as possible. Thats where Grapefruit seed extract comes in.

Grapefruit seed extract has a wealth of health benefits. In alternate or natural medicine it is an extremely versatile antibacterial, antiviral, and anti fungal. You can apply it to anything. I mix the powder with plain filtered water. I either use it alone or with other stronger natural pest remedies. I have used it on me, my candida rash, my fresh cut fruit, my pets, my garden, my cooking area including cutting board, my house and just about anywhere

And the best part, It is all natural, it doesn’t have any additives as you will find in other products and it is easy to use.
Only one warning, if you apply it to your skin, it becomes very sticky after it drys and you have to wash it off. If you let it dry on you fingers they stick together. I think that is what makes it work so well.*

On 8/28/2016 Joan said...

Fantastic Product!
What can I say? This product has more than met my greatest expectations! Not only do I like the bulk prices; I like the quality of the product and the choice of sizes offered. I am already experiencing great results from the Grapefruit Seed Extract. The packaging is just right for keeping the product fresh. I can also say that the shipping was fast. I have bought some other products from you via Amazon as well and will continue to use both your site and theirs when buying more products from you! Thanks for your great selection of products too. *

On 3/1/2016 Derek said...

great for immune support
As a healthcare professional of 15+ years, I'm not much for traditional medicine at all! As long as this product is around, I'll opt for this vs pharmaceutical poisons that rob the body!*

On 2/14/2016 Guy said...

Best value
I use it as part of a parasite cleanse and this is the best bang for your buck.*

On 12/2/2015 Robert R said...

grapefruit seed extract!!!!
This is a great product, this is my second order for gse,I had to order a larger bag. Would highly recommend. You need to check out all of it's health benefit. Thanks again BS.*

On 11/30/2015 deloris said...

Great Product!
Another great product from Bulk Supplements. It is a fine powder that mixes well with liquid and has a grapefruit taste. I am well satisfied, thanks!*

On 8/22/2015 Todd said...

This Citricidal (grapefruit seed extract) is powerful medicine, indeed
The morning pre-workout stack (mostly BulkSupplements products in decreasing order of importance at a daily cost of $0.84) that I drink just before running five 50-second sprints is as follows:

1. Acetyl-l-carnitine, 1.0 gram
2. L-carnitine, 1.0 gram
3. L-citrulline dl-malate (2:1), 3.0 grams
4. Beta alanine, 3.0 grams
5. DMAE-bitartrate, 0.7 gram
6. Grape seed extract, 0.25 gram
7. L-glutamine, 1.0 gram
8. Pine Bark Extract, 0.15 gram
9. N-acetyl l-cysteine (NAC), 0.6 gram
10. N-acetyl l-tyrosine (NALT), 1.6 grams
11. Methyl-sulfonyl-methane (MSM), 2.0 grams
12. Creatine monohydrate, 2.5 grams
13. Sublingual methylcobalamin, 500 mcg, (Jarrow's)
14. Calcium ascorbate, 2.5 grams, 250 mg elemental calcium, 2.25 grams ascorbate
15. Niacin (vitamin B-3), 0.045 gram

An occasional nootropic pre-workout stack (all BulkSupplements products in decreasing order of importance at a daily cost of $0.15) is as follows:

1. Green tea extract, 50% polyphenols, 0.5 gram
2. Green tea extract, 50% caffeine, 0.4 gram
3. Ginkgo biloba 24%, 0.2625 gram
4. Rhodiola rosea 3% salidrosides, 0.2 gram

The 1:00 PM mealtime stack (mostly BulkSupplements products in decreasing order of importance at a daily cost of $1.72) is as follows:

1. Curcumin 95% curcuminoids, 1.0 gram
2. Betaine HCL, 1.2 grams
3. Ascorbic acid powder, 2.0 grams
4. Biotin 1%, 1.0 gram (10000 mcg biotin)
5. DMAE-bitartrate, 0.7 gram
6. Grape seed extract, 0.25 gram
7. Pine bark extract, 0.5 gram
8. N-acetyl-l-cysteine (NAC), 0.6 gram
9. Vitamin E powder, 0.56 gram (393.6 IU)
10. Methyl-sulfonyl-methane (MSM), 3.0 grams
11. Ginkgo biloba 24%, 0.2625 gram
12. Milk thistle 80% silymarin, 0.25 gram
13. Quercetin Dihydrate, 0.25 gram
14. Rutin, 0.5 gram
15. Lutein 5%, 0.24 gram
16. Grapefruit Seed Extract (10:1), 0.25 gram
17. Beta Sitosterol 40% Phytosterols 90%, 1.0 gram
18. L-proline, 2.0 grams
19. L-lysine HCL, 0.68 gram
20. Vitamin D Powder, 0.092 gram (10,000 IU)
21. Pomegranate Extract 40% ellagic acid, 0.5 gram
22. Inositol, 0.6 gram
23. Choline-Bitartrate, 1.5 grams
24. N-N-Dimethylglycine HCL, 0.5 grams
25. Horsetail P.E. 7%, 0.44 gram
26. Hyaluronic acid, 0.05 gram

Additional supplements in decreasing order of importance taken with the 1:00 PM meal include:

1. Krill Oil, 1000 mg includes 400 mg phospholipids, 100 mg EPA, 55 mg DHA, 1 mg astaxanthin, (Dr. Mercola, $0.35)
2. Omega-3 fatty acids, 3600 mg includes 1200 mg EPA, 600 mg DHA, (Trader Joe's, $0.36)
3. Astaxanthin, 12 mg, (Nutrex Hawaii Bioastin Hawaiian Astaxanthin, $0.39)
4. Ubiquinol, 100 mg, (Trader Joe's, $0.36)
5. Resveratrol, 50 mg, other organic antioxidant extracts, 500 mg, (Dr. Mercola Purple Defense, $0.45)
6. Vitamin K, 1000 mcg K1 as phytonadione, 1000 mcg K2 as menaquinone-4, 200 mcg K2 as menaquinone-7, (Life Extension Super K with Advanced K2 Complex, $0.23)
7. Natural multivitamin, (Trader Joe's, $0.22)
8. Saw palmetto, 320 mg + 200 mcg Selenium, (Trader Joe's, $0.15)
9. Chlorella, organic broken cell wall, 1000 mg, (Dr. Mercola, $0.12)
10. Iodine, two drops daily, 5.5 mg iodine + iodide, (Lugol's, $0.017)

The nighttime stack (mostly BulkSupplements products in decreasing order of importance at a daily cost of $0.43) is as follows:

1. Magnesium citrate, 4.0 grams, 600 mg elemental magnesium
2. Potassium citrate, 6.0 grams, 2160 mg elemental potassium
3. Ascorbic acid, 3. grams
4. L-taurine, 1 gram
5. N-acetyl L-cysteine (NAC), 0.25 gram
6. Sublingual melatonin, 625 mcg, (Source Natural)

To avoid continuously opening and closing Ziploc bags and making multiple measurements, I mix up a one to two months supply of the stacks in large bottles and take a single tablespoon measurement from each:
1. Morning pre-workout stack: 1.99 tablespoons shaken in 16-24 ounces of spring water.
2. Occasional nootropic pre-workout stack: 0.20 tablespoon (0.59 teaspoon) mixed in with the morning stack.
3. 1:00 PM mealtime stack: 2.28 tablespoons shaken in 8-16 ounces of spring water.
4. Nighttime stack: 1.10 tablespoons shaken in 4-8 ounces of spring water. I use a flour sifter to thoroughly mix the supplement powders.

The following benefits of grapefruit seed extract are abstracted from MEDLINE (GreenMedInfo) of the National Medical Library. Each line is the title of a clinical trial, usually double-blinded and placebo-controlled:

1. Grapefruit seed extract has antifungal activity.
2. Grapefruit seed extract demonstrates potent anti-Candida activity.
3. Various plant flavonoids from Amaranth-seed extract, grapefruit-seed extract, capsaicin, etc. have gastroprotective effects.
4. Grapefruit seed extract is a safe and effective antimicrobial against gram-negative and gram-positive organisms.
5. Grapefruit seed extract is an effective alternative to proven topical antibacterial drugs.
6. A combination of Citricidal (grapefruit seed extract) and geranium oil showed the greatest antibacterial effects against MRSA.
7. Grapefruit seeds are effective in treating urinary tract infections.
8. Grapefruit Seed Extract is a Powerful in vitro Agent Against Motile and Cystic Forms of Borrelia burgdorferi sensu lato.
9. Grapefruit extract and juice reduces arterial blood pressure in vitro and in vivo.
10. Grapefruit seed extract is comparable to metformin in positively modulating blood lipid profiles and blood sugar.
11. Grapefruit seed extract positively modulates blood sugar, blood lipid profiles and indices of cardiovascular disease risk in a rat model of type 2 diabetes.
12. Grapefruit extract attenuates acute pancreatitis induced by ischemia/reperfusion in rats via antioxidative mechanisms.
13. Grape seed polyphenols and curcumin reduce genomic instability events in a transgenic mouse model for Alzheimer's disease.
14. Grapefruit seed extract may offer a safe and effective therapy for treating head lice in children.*

On 1/6/2015 Stephen said...

I love this!
I add grapefruit seed extract to my energy drink. It is kind of brown but it taste good. Another winner for Bulk Supplements!*

On 8/18/2014 Tootsie said...

Only registered users can write reviews. Please, log in or register

Product Questions

How is the product packaged if you buy 200 kgs of the product?