No sugar, fillers, binders, artificial colors or flavors
Builds a natural shield by strengthening natural immunity
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
GCP Flea & Tick Natural Defense for Dogs - 100 Soft ChewsOverview HIGHLIGHTS 100 Soft Chews Safely repels fleas, ticks & mosquitos No Harsh Chemicals Long lasting protection Delicious and easy Made to FDA standards 60 day money back guarantee SUGGESTED USAGE These soft chews help build your dog's long term flea and tick resistance when given daily for 30 days or more. How many chews should I give my dog? < 5 lbs: chew 5 10 lbs: chew 11 15 lbs: chew 16 20 lbs: 1 chew 21 40 lbs: 2 chews 41 60 lbs: 3 chews 61
Overview
HIGHLIGHTS
- 100 Soft Chews
- Safely repels fleas, ticks & mosquitos
- No Harsh Chemicals
- Long lasting protection
- Delicious and easy
- Made to FDA standards
- 60-day money back guarantee
SUGGESTED USAGE
- These soft chews help build your dog's long-term flea and tick resistance when given daily for 30 days or more.
- < 5 lbs: ¼ chew
- 5 – 10 lbs: ½ chew
- 11 - 15 lbs: ¾ chew
- 16 – 20 lbs: 1 chew
- 21 – 40 lbs: 2 chews
- 41 – 60 lbs: 3 chews
- 61 – 80 lbs: 4 chews
- 81+ lbs: 5 chews
Benefits
Natural & Effective
Designed for Dogs
Packed with vitamins, promoting overall dog health and well-being
Tasty chicken-flavored chews that are easily chewable
Tasty chicken-flavored chews that are easily chewable
Premium Quality
Formulated with powerful yet natural pest-deterring ingredients
Made to FDA standards in the USA
Made to FDA standards in the USA
Ingredients
Active Ingredients
GCP Flea, Tick, and Mosquito Deterrent chews are a natural supplement designed to make your pet unwelcoming to pests. Its efficacy is based on three natural, science-based mechanisms:
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Thiamine (vitamin B1) Helps to reduce fleas on the skin by promoting the release of sulfur, which is toxic to fleas, through the skin. While Thiamine is highly effective in reducing fleas, ticks and mosquitos, it poses no danger to your pets. GCP contains more than 10x the thiamine of our competitors!
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Apple Cider Vinegar Has been shown to safely repel insects by making your pet’s skin and blood more acidic. Fleas have also been shown to be deterred by the smell and taste of vinegar. Apple cider vinegar is effective in treating current pest infestations and helps to prevent new ones from occurring. It also works in conjunction with the lauric acid in coconut oil to repel pests.
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Anise Emits an odor that’s not tolerated by fleas. When taken internally, anise deters fleas from biting your pets, and keeps infestation at bay.
More Vitamins, Minerals, & Good Stuff
- Niacin (vitamin B3) helps promote skin and coat health in dogs.
- Vitamin B12 works to ensure that your pet’s nervous system functions properly. It also promotes normal cell growth. Vitamin B12 helps to maintain the energy levels of dogs so they can enjoy active, full days.
- Vitamin E is a fat-soluble nutrient that is essential for a dog’s muscles, circulatory system, and injury healing. It’s also an antioxidant, helping to protect cells from damage caused by free radicals.
- Coconut Oil contains anti-inflammatory properties that promote skin and coat health. Lauric acid, the main component of coconut oil, also helps to deter pests from biting and infesting your pet’s skin. Coconut oil additionally soothes skin and prevents flea rash.
Quality you can trust
We manufacture our delicious GCP chews that successfully deters fleas, ticks and mosquitos without additives, binders, fillers, sugars, chemicals or pesticides.
We never include ingredients that can lead to severe allergic reactions in pets, such as geranium, lavender, pennyroyal oil or eucalyptus.
Our active ingredients are all vigorously tested and uniquely formulated to naturally repel fleas, ticks and mosquitos, while promoting overall great health and well-being for your pets.
We manufacture our supplements in the USA in an FDA approved facility. We personally see to it that every step of production is held up to the most rigorous manufacturing standards.
Frequently Asked Questions
How long does it take to start having an impact?
Our chews are designed to be used daily and build up deterrence over 30 days for full effect.
How often should I use this product?
This product is designed to be given to your dog daily to build up and maintain a first line of defense against fleas, ticks, and mosquitos.
What is the dosage?
Dosage is based on the size of your dog – 1 chew per 20 lbs. See the dosage chart above.
We already have an active flea infestation. Is this the right product for me?
Since our product is a preventative and deters pests over 30 days of daily use, we would recommend using other natural solutions such as flea shampoos first.
What about my cat? Can I use your product for my cat?
These chews are formulated for dogs but work for cats just as well. In our first run, cats didn't like the taste as much as dogs did, so we initially marketed it for dogs. If your cats aren’t finicky eaters, it should work just fine for you.
60 Day Money Back Guarantee
Our products come with a 60-day no-hassle guarantee. If your dog decides they don’t like the chews, or if it “isn’t working out,” we’ll refund you. Hassle free.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 218 reviews
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Product Reviews
★★★★★ 5
10/10
Color: Multicolor-4pack-a1, Size: Small
These are some of my favorite underwear. I find myself reaching for these constantly. They're very good quality and very stretchy. I'm 140 5'3 and I got a small they fit great. Someone larger or smaller would fit in the small too. I do stress that the leg holes are a bit tight on my thighs and I don't have thick thighs at all. On someone with thicker thighs I'd say size up to a medium. You can wear these as mid/high waisted or low waisted. They're versatile! The cotton gusset is a plus too❣️
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Better than Haynes at for less money
Color: Multicolor-4pack-a1, Size: XX-Large
I am surprised by the quality of these knickers. They are better than Haynes for less money and when I say they’re better, I mean far better, but I can’t believe how comfortable and STRETCHY best underwear is
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Reviewed in the United States on April 25, 2026
★★★★★ 5
love love love!!
Color: Multicolor-4pack-a1, Size: Medium
like my daily driver now, like i never thought underwear could be this good untill now! have bought 2 4packd and will probably get more in the future :) they are snug but not suffocating, with my darker skin i was worried of them getting darker in that area but so far(3-4 months) they’ve been holding up well and clean easily in the washing with a bit of stain remover!
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Reviewed in the United States on May 19, 2026
★★★★★ 3
Satisfactory
Color: Multicolor-4pack-a1, Size: X-Large
If your wanting an easy on high waisted underwear these work.
They are honestly strange material, a mix of three different things- not bad but different.
Not seamless, might ride up, slightly on the thicker side. Will last a while. Comfortable enough but not amazing.
Got for after a surgery and needed something different- these worked but would I get on a normal day probably not.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
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Reviewed in the United States on November 13, 2025