Fly Block for Dogs
Liquid
Adult
Junior
Senior
Skin&Coat/Ears
Bottle
Dog
NutraVital® FlyBlock for Dogs in the value size. The natural anti-parasitic spray for dogs works against ticks, fleas, mosquitoes, mites, sand flies and lice. Purely plant-based formula, free from synthetic chemicals. Identical formula to NutraVital® FlyBlock for Dogs in the 100 ml variant.
The value size: 400 ml instead of 100 ml, cheaper per ml
Identical formula with thiamine (Vitamin B1), manuka oil and neem extract
Purely plant-based formula, free from synthetic chemicals
Ideal for multi-dog owners, large dogs and year-round use
Also suitable as an environmental spray for kennels, transport boxes and sleeping areas
€29.99
(€74.98 / 1 kg) •
Available immediately (delivery time: 2-5 days)
€29.99
(€74.98 / 1 kg) •
400 ml in the value size: when XXL makes sense
The 400 ml XXL bottle contains the same plant-based formula as the 100 ml variant: ten active plant-based ingredients with thiamine as the cornerstone, combined with manuka oil, neem extract, geraniol, eugenol and other essential oils. The efficacy against ticks and other parasites is identical to the smaller variant.
The only difference is the bottle size. At 400 ml instead of 100 ml, the price per ml is significantly lower. If you use FlyBlock regularly, supply multiple dogs or have a large dog, the value size is the smarter choice.
When the 400 ml value size makes sense
NutraVital® FlyBlock is available in two sizes with an identical formula. The XXL variant with 400 ml is particularly worthwhile if you use the spray frequently or for multiple dogs. Here are four scenarios where the larger bottle is the more economical choice.
For year-round use
If you use FlyBlock consistently throughout the year, you'll be spraying every 2 to 3 days during the season and every 7 to 14 days outside it. Over the course of a year, that adds up to a lot of applications ... and that's where the value size really pays off. With a 400 ml bottle, you have enough supply to comfortably last the season without having to reorder mid-way through tick season.
For multi-dog owners
If you have two, three or more dogs in the household, you'll naturally use more spray per season. The XXL bottle lasts for significantly more applications than four individual 100 ml bottles, without the hassle of reordering multiple times.
For large dog breeds
With a Bernese Mountain Dog, Labrador or Great Dane, considerably more spray is needed per application than with a Dachshund or Yorkshire Terrier. More coat to cover, more spray needed. The 400 ml bottle is the more economical choice for larger breeds.
For extensive environmental use
FlyBlock isn't just for your dog's coat: it's also suitable for dog houses, sleeping areas, transport boxes and carpets. If you regularly treat the environment as well, you'll use additional product. The XXL bottle comfortably covers both areas of use.
When to use the anti-parasitic spray for dogs
To prevent parasite infestation in dogs with access to forests, meadows and gardens
To repel ticks, fleas, mosquitoes, sand flies and lice
For environmental treatment of kennels, transport boxes, sleeping areas and carpets
Year-round as a baseline protection, with increased use during tick and flea season
Suitable for dogs of all ages, including young dogs
As a natural alternative to chemical spot-on products and collars
How to use FlyBlock XXL
Shake the bottle well before use. Spray from approximately 20 cm distance onto the coat, including against the direction of the fur. Treat the belly, legs, back and neck, but avoid the face: instead, apply a few sprays to your hand and rub in.
During the active tick season from spring to autumn, apply every 2 to 3 days. Year-round, use every 7 to 14 days as a baseline protection. Reapply after bathing. Protect from direct sunlight.
For environmental use, spray dog houses, transport boxes, blankets, carpets and sleeping areas directly.
Ingredients
Water, propylene glycol, glycerin, citrus fruit extract, walnut leaf extract, clove bud oil, South Sea myrtle oil (manuka), tea tree leaf oil, neem seed oil (neem, margosa), basil oil, pelargonium (geranium) flower oil, PEG-40 hydrogenated castor oil, oregano oil, sodium PCA, thiamine hydrochloride (Vitamin B1), acrylates/C10-30 alkyl acrylate crosspolymer, yeast extract, lactic acid, PPG-26-buteth-26, sodium hydroxide, sodium methylparaben, benzyl alcohol, citral, citronellol, dichlorobenzyl alcohol, eugenol, geraniol, limonene, linalool, fragrance, phenoxyethanol.
Living microorganisms that work precisely where they are needed: in the gut, on the skin, in the mouth.
No fillers, no sugar, no artificial flavourings. Only what truly benefits your pet.
Development, manufacturing and quality control: all in Germany. Every batch laboratory-tested.
Developed on the basis of current scientific research.
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FAQ – Frequently asked questions about the 400 ml value size
Here are the questions we're asked most often about the XXL product.




