Why saline

Saline: a dog- and cat-safe alternative to toothpaste

Brushing does the cleaning; saline keeps it simple. Pets can't rinse and spit, so everything on the brush gets swallowed. That's why we use sterile 0.9% saline in single-use 5 mL ampoules.

What's inside every ampoule

Two ingredients: sodium chloride (salt) and purified water, at 0.9% — the same salt concentration as your pet's own body fluids. Each sterile, sealed ampoule holds 5 mL, which is about 45 mg of salt: enough to moisten a wipe, swab, or brush for one session.

Why saline works for brushing

Nothing they shouldn't swallow. No sweeteners, foaming agents, artificial colors, fluoride, flavorings, or essential oils. Just salt and water.
Gentle on gums. Isotonic saline matches the body's own salt balance, so it's mild on gums and the soft tissue of the mouth.
Helps the tool glide. A moist wipe, swab, or brush moves more comfortably along the teeth than a dry one — and helps rinse away loose food debris.
No flavor to fight. Some pets love flavored pastes; plenty reject them. Saline is neutral, so the session is about the routine, not the taste.
Clean every time. Each session starts with a freshly opened, sterile ampoule.

The cleaning itself comes from gentle, regular brushing — the mechanical action of the wipe, swab, or bristles along the teeth and gumline. The American Veterinary Medical Association calls regular brushing "the single most effective thing you can do" for your pet's teeth between veterinary cleanings. Saline simply keeps that routine gentle and uncomplicated.

Pets can't spit: what to watch for on any toothpaste label

Many pet toothpastes are thoughtfully made. Our point is simpler: read the label, and remember that everything on the brush ends up swallowed. These are the ingredients we decided to leave out:

Xylitol — a sweetener found in many human toothpastes and some sugar-free products. It's dangerous for dogs, even in small amounts.
Fluoride — common in human toothpaste and not meant to be swallowed. Never use human toothpaste on a pet.
Foaming agents (such as sodium lauryl sulfate) — they make the foam people spit out. Pets swallow it instead, and it can upset the stomach.
Sorbitol and other sweeteners — added for taste; larger amounts can cause digestive upset.
Artificial colors — they add nothing to cleaning.
Essential oils — some, such as tea tree oil, can be toxic to cats and dogs.
Baking soda — strongly alkaline, and not something to swallow in quantity.

Can dogs or cats use human toothpaste?

No. Human toothpaste is made to be spat out, and pets swallow it. Many human toothpastes contain xylitol, which the U.S. FDA warns is dangerous for dogs even in small amounts, along with fluoride and foaming agents. If your pet eats toothpaste that contains xylitol, call your veterinarian or the ASPCA Animal Poison Control Center right away.

Do you need a dog toothpaste at all?

Not to get teeth clean. The cleaning comes from the gentle mechanical action of a finger wipe, swab or brush moving along the gumline. A flavored dog or cat toothpaste mainly adds motivation, and the flavor systems, sweeteners and preservatives come along with it. If you'd rather skip them, moisten the tool with a few drops of sterile saline instead. If you do choose a pet toothpaste, read the label for the ingredients above and never use one made for people.

Always / Never

Always in our saline

Sterile 0.9% sodium chloride
Purified water
Sealed, single-use 5 mL ampoules
Nothing else

Never in our saline

Xylitol
Fluoride
Foaming agents (SLS)
Sweeteners and sorbitol
Artificial colors
Flavorings and essential oils
Baking soda

Why single-use 5 mL ampoules

Once opened, saline should be used within 24 hours. A big bottle that's opened again and again — with a wet wipe or brush dipping back in — is an easy way to introduce bacteria. So we sized every ampoule for a single session: twist it open, use what you need, and discard the rest within the day. Every session starts clean.

Don't DIY salt water

Kitchen salt mixtures are not the same thing. Homemade salt water varies wildly in strength, isn't sterile, and too much salt can be harmful if your pet swallows it. Our saline is measured, isotonic, and sealed — please don't mix your own.

How to use it

Twist open one ampoule.
Wet a finger wipe, swab, or brush with a few drops.
Gently clean the outside surfaces of the teeth along the gumline, a few teeth at a time.
Reward your pet, then discard the ampoule within 24 hours of opening.

New to brushing? The 28-Day Adaptation Plan (free with Standard and Premium kits) walks you through every step, from the first sniff to a full routine.

Sources

American Veterinary Medical Association — Pet dental care
U.S. Food & Drug Administration — Paws off xylitol; it's dangerous for dogs
VCA Animal Hospitals — Brushing teeth in dogs · Brushing teeth in cats
ASPCA — Animal Poison Control

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At a glance

Eight reasons we brush with saline

0.9%Sodium chloride, the same salt balance as body fluids
5 mLOne sealed ampoule, one session
45 mgSalt in a whole ampoule; a session uses a few drops
0Sweeteners, flavors, foaming agents or preservatives

Nothing to be allergic to
Many pet toothpastes are flavored with chicken, beef or peanut. Saline is just salt and purified water: no animal proteins, no flavor systems, nothing that typically triggers food sensitivities.
Gentle on tender gums
Isotonic saline matches your pet's own salt balance. No foaming agents, abrasives, mint or alcohol that can sting gums that are already sensitive.
Kind to sensitive stomachs
Pets swallow everything on the brush. Saline has no sorbitol, glycerin, gums or sweeteners, the ingredients most often linked to soft stools after toothpaste.
Zero sugar, zero fat, zero calories
A sensible choice for pets on carefully managed diets: nothing sweet, nothing oily, nothing that adds up over a year of daily brushing.
Wipes clean, no sticky residue
Paste clings to the tongue and the roof of the mouth and can make pets gag. Saline leaves nothing behind, so the session ends clean and calm.
Teeth, gums and tongue
Some odor-causing buildup sits on the tongue and gums, not just the teeth. A saline-moistened finger wipe or swab glides over all three without leaving paste behind.
Sterile and single-use
Each 5 mL ampoule is sealed until you open it and sized for one session. No tube that touches a wet brush day after day.
Simple enough to start today
No flavor to introduce, no paste to measure. Open, moisten the tool, brush. The routine itself is what keeps teeth clean.

Read the label

What's hiding in a cheap toothpaste?

Is toothpaste bad for dogs and cats? Some ingredients are. Pets swallow everything on the brush, so tap an ingredient to see where it shows up and why we leave it out.

We don't name brands, and not every pet toothpaste contains these. It's simply a list worth checking.

Xylitol

Found in: Many human toothpastes and some sugar-free products

Dangerous for dogs even in small amounts. Never use human toothpaste on a pet.

Fluoride

Found in: Human toothpaste

Made to be spat out, not swallowed. Pets swallow everything.

Sorbitol and glycerin

Found in: Sweeteners and humectants in many pet pastes

Can cause soft stools or tummy upset in pets with sensitive stomachs.

Foaming agents (SLS)

Found in: Human toothpaste and some cheaper pastes

The foam people spit out ends up in your pet's stomach and can irritate it.

Meat and peanut flavorings

Found in: Most flavored pet toothpastes

Great for motivation, a problem for pets with food sensitivities.

Wintergreen or mint oils

Found in: Some mint-flavored pet formulas

Some contain methyl salicylate; cats process salicylates poorly, so daily swallowing is best avoided.

Essential oils

Found in: Some 'natural' formulas

Some, such as tea tree oil, can be toxic to cats and dogs.

Preservatives and dyes

Found in: Long-life tubes and colored pastes

Added for shelf life and color, not for cleaning.

In our saline: none of these. Only 0.9% sodium chloride and purified water.

Toothpaste and saline questions

How saline compares

What actually ends up in your pet's stomach after a brushing session.

Saline compared with pet toothpaste, human toothpaste and homemade salt water
	Pet Gentleman saline	Typical flavored pet toothpaste	Human toothpaste	Homemade salt water
What's in it	Salt and purified water, 0.9%	Paste base, sweeteners, flavorings, preservatives	Fluoride, foaming agents, often xylitol	Unknown strength, not sterile
Safe to swallow daily	Yes	Depends on formula	No	No
Flavor or animal-protein allergens	None	Usually	Mint	None
Sweeteners (sorbitol, xylitol)	None	Often sorbitol	Often xylitol	None
Leaves residue on tongue	No	Yes	Yes	No
Hygiene	Sealed, single-use 5 mL	Shared tube, reused for months	Shared tube	Mixed at home
Use it for pets	Yes	Yes	Never	Never

Typical products compared by common ingredients; formulas vary by brand. Never use human toothpaste on a pet.

Myths and facts

Common beliefs, checked

Myth: Pet toothpaste is what cleans the teeth.
FactThe cleaning comes from gentle, regular brushing: the wipe, swab or bristles moving along the gumline. The AVMA calls regular brushing the single most effective thing you can do between veterinary cleanings.
Myth: Salt water is salt water.
FactHomemade salt mixtures vary wildly and aren't sterile, and too much salt can be harmful if swallowed. Sterile 0.9% saline is measured, isotonic and sealed.
Myth: A pet that hates brushing will always hate it.
FactMost resistance is about surprise and the wrong tool. Short, rewarded steps and a tool your pet accepts change the routine, which is why our kits include several tools and a 28-day plan.
Myth: Bad breath is just normal dog breath.
FactPersistent bad breath is often a sign of buildup or gum problems. Brushing helps, and a veterinarian should check breath that suddenly gets worse.

Start with trust. Brush with saline.

The Standard kit has every tool and the free 28-day plan. Ships from our U.S. warehouse for a flat $7.

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