Trust Think ORGANIC Fly + Tick Control

Non-toxic organic fly and tick control that repels insects from the horse itself.

Want a feed-through fly and tick control that repels insects from your horse's body, not just manure?

Reviewed by Ann Pruitt, InfoHorse.com · Updated July 2026

Trust Think All-Species Fly and Tick Control organic supplement 4 lb bucket

Trust Think ORGANIC Fly + Tick Control

Trust Think ORGANIC Fly + Tick Control is NON toxic. Unlike other "feed thru" fly control supplements, it does not repel flies from the manure, but from the Body of the horse-- so superior!

Bill and Sue Brown- Wanted A Better Way To Fight Flies and Ticks!

Bill Brown isjust a farm kid trying to care for horses and cattle. He grew up on 700 acres and 150 head of cattle, and several horses, in Northwest Iowa, and his wife Sue grew up on a dairy farm nearby. Like countless other farm kids, they developed a sincere love and appreciation for horses and cattle. Bill is the inventor of Insulights(a flashing fence monitor that attaches to electric fencing to show that the electric fence is working) but one struggle Bill and Sue noticed for both horses and cows— were Flies and Ticks. Feed-through fly control contained harsh ingredients and only worked by passing toxins into the manure. Bill and Sue knew there had to be a better way… TheTrust Think Organic Equine Fly + Tick Supplementwasthe answer!!!

How Is the Equine Fly + Tick Supplement Different From a “Feed-Through” Product?
Unlike traditional Feed-through supplements that rely on pesticides, theTrust Think Organic Equine Fly + Tick Supplementis a systemic,pesticide-freesolution. When consumed, the supplement works from within the animal, supporting the skin and hair follicles so blood-seeking flies and ticks are naturally discouraged from landing and feeding. Conventional pesticide feed-through products typically pass through the animal and are excreted in the manure, killing pests only where the animal was standing. Our organic approachtreats the entire animal, not just the ground (manure) beneath it!

Is It Truly Organic? Why Is That Important?
Yes. This supplement is made with Organic Minerals and containsNO Pesticides.That matters because many owners prefer not to introduce toxic chemicals into their animals’ diets. Organic pest control supports animal health while reducing environmental impact.

How Long Does It Take to Become Effective?
Every animal is different, but most experience effective protection after feeding 2 ounces per day for approximately 14 days.

Will It Test Positive at Shows?
No. This product is an organic mineral supplement andwill not testat shows. Showing a horse is stressful enough and some facilities are just overloaded with Flies! Your horse’s coat will NOT be ‘attractive” to flies with our product and this is going to make showing less stressful on you and your horse.

Does It Repel Flies from Landing? How Does It Work?
Yes. Because the supplement works systemically through the skin and hair follicles, it helps discourage blood-seeking flies and ticks from landing and feeding, rather than only targeting pests in manure on the ground. It offers whole-animal protection without the use of toxic pesticides. Unlike traditional feed-through products that rely on pesticides excreted in manure, this organic, systemic formula works from the inside out—supporting the skin and hair follicles to discourage blood-seeking flies and ticks from landing and feeding.

Key Benefits

Organic, pesticide-free formula
Systemic protection through skin and hair follicles
Repels flies and ticks from landing and feeding
Treats the whole animal—not just manure
Show-safe and easy to feed

What is Trust Think ORGANIC Fly + Tick Control?

Trust Think is an organic, insecticide-free daily feed supplement that fights flies and ticks from the inside out rather than with sprays or topical chemicals. Marketed as the All-Species Fly & Tick Supplement, it is recognized on four continents as a leading additive for protecting animals from blood-seeking insects, and it is positioned as Gras-rated and FDA-approved. Because it works naturally from within, there is no immunity, resistance, or build-up over time, and the makers note it is impossible to overdose.

Trust Think All-Species Fly and Tick supplement 25 lb bucket six-month horse supply

Who makes Trust Think, and why?
The supplement is produced by Insulights.com, Inc. of Ankeny, Iowa, the company founded by Northwest Iowa farm couple Bill and Sue Brown. Bill grew up on 700 acres running 150 head of cattle, and Sue grew up on a nearby dairy farm, so the pair built their products around real chore-doing farm life rather than a lab brief. Their mission of keeping livestock safe and comfortable carried directly into a pest-control answer that does not rely on harsh sprays. You can reach the company,, or 1024 NW 33rd St., Ankeny, IA 50023.

Trust Think organic fly and tick feed supplement 45 lb bag for livestock

How does the feed-through formula work on the body, not the manure?
Unlike conventional "feed-thru" fly programs that target larvae in the manure, Trust Think makes the body of the horse itself unappealing to biting pests, which the maker calls a far superior approach. As the horse eats its daily scoop, the all-natural formula changes the animal's profile so that flies, ticks, mosquitoes, lice, and fleas are discouraged from landing and feeding. The result is fewer bites at the source, improved skin integrity, and reduced skin irritation across the herd.

Trust Think organic fly and tick supplement 250 lb bulk drum for farms

What does the university research show?

Trust Think reports that two animal-science university trials documented dramatic comfort gains in supplemented animals. The trials measured an 80% reduction in head shaking and ear flicking, a 66% drop in tail swishing, a 59% decrease in leg kicking, and 43% fewer tick attachments. Owners echo those numbers anecdotally, with verified user Kayce reporting "My horses are so much more comfortable. No constant tail switching... it's all natural... I haven't seen a single tick."

Who is it for, and which animals can take it?
While the equine version targets horses and mules, the underlying All-Species formula is rated for a wide range of livestock and pets, including cattle, bison, goats, sheep, elk, deer, pigs, and dogs. That makes it a practical single-bucket solution for mixed-species farms that want one organic pest program instead of a shelf of different sprays. It is environmentally friendly and non-habitat-destroying, an appealing point for pasture, turnout, and stable settings alike.

How do you feed it, and where can you buy it?
Feeding is simple: add one 2 oz scoop per day to the animal's regular feed. A 25 lb bucket provides a one-month supply for six animals or a six-month supply for a single horse at one scoop per day, and the supplement is also offered in 4 lb buckets (around $39.99), 45 lb bags, and 250 lb drums. It is sold directly through Insulights.com and stocked by major equine retailers including Tractor Supply Co., Valley Vet, Big Dee's, and StateLineTack.

Share This Solution

Facebook X LinkedIn Email

Follow Trust Think ORGANIC Fly + Tick Control

The Solution Section (FAQ)

Who is Bill and Sue Brown — and what's the founding story?

Per Trust Think: Bill Brown is just a farm kid trying to care for horses and cattle. He grew up on 700 acres and 150 head of cattle, plus several horses, in Northwest Iowa. His wife Sue grew up on a dairy farm nearby. Like countless other farm kids, they developed a sincere love and appreciation for horses and cattle.

Bill is also the inventor of INSULIGHTS (a flashing fence monitor for electric fencing). One struggle Bill and Sue noticed for both horses and cows was flies and ticks — and feed-through fly control contained harsh ingredients and only worked by passing toxins into the manure. Bill and Sue knew there had to be a better way.

What is the Trust Think Organic Equine Fly + Tick Supplement?

Per Trust Think: a smarter, cleaner approach to pest control. This organic, systemic formula supports the animal from the inside out, helping deter flies and ticks from landing and feeding without the use of toxic pesticides.

Per the company: provides whole-body protection through the skin and hair follicles — for horse and livestock owners who want reliable fly and tick control while prioritizing animal health, environmental responsibility, and show-safe performance.

How is this different from a traditional "feed-through" pesticide product?

Per Trust Think:

Conventional pesticide feed-through products typically pass through the animal and are excreted in the manure, killing pests only where the animal was standing
Trust Think Organic is a systemic, pesticide-free solution. When consumed, the supplement works from within the animal, supporting the skin and hair follicles so blood-seeking flies and ticks are naturally discouraged from landing and feeding

Per the company: this organic approach "treats the entire animal, not just the ground."

Is it safe for show-horses — does it pass show regulations?

Per Trust Think: yes — the supplement is show-safe performance. Pesticide-free systemic formulation avoids the disqualification risks associated with traditional pesticide-based fly control.

How is this different from INSULIGHTS — both Bill Brown's invention?

Per Trust Think / INSULIGHTS: distinct products from the same Iowa farm-family inventor.

INSULIGHTS — flashing fence monitor for electric fencing (visual/safety hardware)
Trust Think Organic Equine Fly + Tick Supplement — systemic feed supplement for fly and tick deterrence (this product)

Same family-business vendor, completely different product categories — choose based on whether the need is electric-fence monitoring or fly/tick control.

How do I order?

Per Trust Think: Phone 712-568-3005, email [email protected], website https://www.insulights.com. Pricing as quoted is subject to change due to economic factors — confirm current pricing with Trust Think directly when ordering.

What is Trust Think ORGANIC Fly + Tick Control?

It is an organic, insecticide-free daily feed supplement that protects horses and other animals from flies, ticks, mosquitoes, lice, and fleas. Instead of using sprays or topical chemicals, it works naturally from within after the animal eats it. It is made by Insulights.com, Inc. of Ankeny, Iowa, founded by Bill and Sue Brown.

How is it different from other feed-through fly control products?

Most feed-through fly programs target larvae developing in the manure. Trust Think instead works on the body of the horse, making the animal itself unappealing to biting pests, which the makers describe as far superior. This means it reduces bites directly on the horse rather than only affecting the manure pile.

Who created Trust Think, and what is the company's background?

It is produced by Insulights.com, Inc., founded in Iowa by Bill and Sue Brown. Bill grew up on 700 acres with 150 head of cattle in Northwest Iowa, and Sue grew up on a nearby dairy farm. Their products grow out of real, hands-on farm experience rather than a corporate lab.

Is Trust Think safe and non-toxic?

Yes. The product is marketed as NON toxic, organic, and insecticide-free, with no harsh chemicals. The makers state it is impossible to overdose and that it improves skin integrity while reducing skin irritation. It is positioned as GRAS-rated and FDA-approved.

What does GRAS-rated mean for this supplement?

GRAS stands for Generally Recognized As Safe, a designation used for feed and food ingredients considered safe by qualified experts. Trust Think is described as GRAS-rated and FDA-approved, supporting its positioning as a safe, all-natural daily additive. This is part of why the makers say it cannot be overdosed.

How do I feed Trust Think to my horse?

Feeding is simple: add one 2 oz scoop per day to your horse's regular feed. There is no need for weight-based dosing or special timing. Because it is all-natural with no resistance build-up, it is fed consistently throughout the pest season.

How long does a bucket last?

A 25 lb bucket provides a one-month supply for six animals or a six-month supply for a single horse, using one 2 oz scoop per day. Smaller 4 lb buckets are available for single animals or trials, and larger 45 lb bags and 250 lb drums are offered for bigger operations. This makes it easy to size to your herd.

What pests does Trust Think protect against?

It is formulated to discourage biting flies, ticks, mosquitoes, lice, and fleas. By making the animal's body unappealing to these blood-seeking insects, it reduces bites at the source. It is recognized on four continents as a leading additive for protecting animals from these invasive pests.

Does the university research support its effectiveness?

Trust Think reports that two animal-science university trials documented major comfort improvements. The trials measured an 80% reduction in head shaking and ear flicking, a 66% drop in tail swishing, a 59% decrease in leg kicking, and 43% fewer tick attachments. These figures are cited as evidence of dramatic protection.

Will pests build up resistance to it over time?

No. The makers state there is no immunity, resistance, or build-up, so the supplement continues working year after year. This is a key advantage over chemical insecticides, which pests can adapt to. Consistent daily feeding keeps protection steady through the season.

Can I use it for animals other than horses?

Yes. While there is an equine version, the underlying All-Species formula is rated for cattle, bison, horses, mules, goats, sheep, elk, deer, pigs, and dogs. This makes it a practical single solution for mixed-species farms that want one organic pest program instead of multiple sprays.

Is Trust Think environmentally friendly?

Yes. It is marketed as environmentally friendly and non-habitat-destroying, an important point for pasture and turnout settings. Because it works through the animal rather than broadcasting chemicals into the environment, it avoids the collateral impact of sprays. This appeals to owners who want a low-impact approach.

How soon will I see results after starting it?

Owners report noticeable comfort gains within days of starting daily feeding. One testimonial from Steve B. at the Iowa State Fair noted that after a few days the flies were gone, and when feeding stopped the flies returned within two days. Consistent daily feeding is key to maintaining protection.

Does Trust Think reduce the need for fly spray?

Yes, according to user feedback. Verified user Vicky S. reported that using the supplement helps reduce the amount of fly spray needed and that the animals are more comfortable. By cutting bites at the source, it lessens reliance on topical products.

How much does Trust Think cost and where can I buy it?

The 4 lb bucket is offered at around $39.99, with larger 25 lb buckets, 45 lb bags, and 250 lb drums available for bigger operations. It is sold directly through Insulights.com and stocked by major equine retailers including Tractor Supply Co., Valley Vet, Big Dee's, and StateLineTack. Pricing varies by package size and retailer.

How do I contact Trust Think / Insulights directly?

You can reach Insulights.com, Inc. by phone at 712-568-3005 or by email at [email protected]. The mailing address is 1024 NW 33rd St., Ankeny, IA 50023. The Fly + Tick Supplement has its own page on the company website at insulights.com.

Does it help with skin comfort, not just bite prevention?

Yes. Beyond discouraging pests, the supplement is described as improving skin integrity and reducing skin irritation. Fewer bites mean less scratching, rubbing, and inflammation, which supports a healthier coat and calmer horse. Owners report animals are visibly more comfortable, with less tail switching and head shaking.