PetLab Co’s ProBright is one of the best-known dog dental powders in the US — a sprinkle-on formula built around brown algae (Ascophyllum nodosum), a tartar-binding mineral, green tea, and a two-strain probiotic. It is a legitimate product with an evidence-backed main ingredient, but it lists its ingredients without disclosing how much of each you actually get, and it does not carry a VOHC seal. If you want a fully percentage-disclosed formula with a wider dental-active set, Pure Majesty Pets Dog Dental Powder is the main alternative, and we compare them head-to-head below.
This review is part of our brushing-free dog dental care guide. For the category basics, see our dog dental powder guide.
Disclosure: Dog Health Insider is operated by the team behind Pure Majesty Pets and may earn a commission from qualifying purchases. We only recommend products we would give our own dogs.
What is PetLab Co ProBright dental powder?
ProBright (sold as ProBright Advanced) is a flavored powder you scoop onto your dog’s food once a day to help fight plaque, tartar, and bad breath without brushing. PetLab markets it heavily as “America’s #1 dog dental powder,” and brand familiarity is a real part of its appeal. It is sold in tubs sized to your dog — X-Small, Small, Medium, and Large — so you buy the version matched to your dog’s weight.
PetLab ProBright ingredients (from the label)
- Active ingredients: patent-pending probiotic blend (Pediococcus pentosaceus, Lactiplantibacillus plantarum), brown algae (Ascophyllum nodosum), sodium hexametaphosphate, rosemary leaf extract, decaffeinated green tea, perilla seed extract.
- Inactive ingredients: calcium bentonite, dried brewer’s yeast, hydrolyzed chicken liver flavor, spinach powder.
That is a sensible dental line-up. A. nodosum is the seaweed with canine trial data behind it; sodium hexametaphosphate (SHMP) helps bind salivary calcium to slow tartar; green tea and rosemary add antioxidant and mild antibacterial support; and the probiotics target the oral microbiome. The catch is that PetLab does not publish how much of each ingredient is in a scoop — you know what is in it, not how much.
PetLab ProBright price
Pricing runs roughly $32.99 for the X-Small tub up to about $42.95 for the Medium tub as a one-time purchase, with a subscribe-and-save price near $36.51. Because the tubs are size-specific, you commit to the version that matches your dog, and you rebuy that same size.
What PetLab gets right
- An evidence-backed main active. Including A. nodosum means the formula is built on the one dental-powder ingredient with randomized canine trial support.
- Sensible supporting cast. SHMP for tartar, green tea and rosemary for bacteria and odor, and a probiotic for the microbiome is a coherent dental strategy.
- Brand scale and testing. PetLab is widely available and runs third-party testing, which matters for consistency.
- Size-specific tubs. Some owners like that the dosing is pre-matched to their dog’s size.
Where PetLab falls short
- No disclosed amounts. The label names ingredients but not their quantities, so you cannot tell whether the A. nodosum dose matches what worked in studies.
- No hydroxyapatite. The formula does not include the enamel mineral that some competing powders use.
- No enzyme system. It skips the glucose oxidase/lactoperoxidase antibacterial pair found in enzymatic toothpaste and some powders.
- Not VOHC-accepted. ProBright does not hold a VOHC seal. Neither does our alternative below — the only VOHC-accepted powder is ProDen PlaqueOff, covered in our ProDen PlaqueOff review.
PetLab ProBright vs Pure Majesty Pets Dog Dental Powder
| Feature | PetLab Co ProBright | Pure Majesty Pets Dog Dental Powder |
|---|---|---|
| Disclosed actives | ~6 active ingredients, amounts not disclosed | 12 actives, each shown as % of formula |
| Ascophyllum nodosum (kelp) | Yes (amount not stated) | Yes — 8% |
| Hydroxyapatite (enamel) | No | Yes — 15% |
| Enzyme system (GOX/LPO) | No | Yes — 0.6% |
| Tartar-control mineral (SHMP) | Yes | Yes — 1% |
| Probiotic component | Live 2-strain blend | Oral probiotic lysate (postbiotic) 0.3% |
| Sizing model | Buy the tub matched to dog size | One formula, dosed by scoop per weight |
| VOHC seal | No | No |
| Price | ~$32.99–$42.95 by size | $44.99 |
The honest read: both powders share A. nodosum, SHMP, green tea, and a probiotic element, and neither holds a VOHC seal. The clearest differences are transparency and breadth. Pure Majesty Pets Dog Dental Powder publishes a percentage for all 12 actives — so you can see the kelp is at 8% and hydroxyapatite at 15% — and adds two mechanisms PetLab does not have: an enamel mineral (hydroxyapatite) and the enzymatic antibacterial system used in dog toothpaste. PetLab counters with a live probiotic blend and the convenience of size-matched tubs. At $44.99 versus roughly $42.95 for PetLab’s medium tub, the prices are close enough that the decision comes down to whether disclosed amounts and a broader active set matter to you.
Who each one suits
- Choose PetLab if you want a widely available, well-known brand, prefer a live probiotic, and are comfortable with a size-matched tub and undisclosed amounts.
- Choose Pure Majesty if you want every ingredient’s percentage on the label, hydroxyapatite for enamel, an enzyme system, and one formula you dose by scoop.
- Choose ProDen PlaqueOff if an independent VOHC seal is your non-negotiable, and you are fine with a single-ingredient kelp powder.
When to see your vet
A powder from any brand supports daily plaque control — it does not treat disease. Book a veterinary dental exam for bleeding or swollen gums, a loose or broken tooth, heavy tartar, or breath that stays foul. Those need a professional cleaning, not more powder.
Frequently asked questions
Does PetLab Co dental powder work?
Its main active, A. nodosum, has randomized canine trial data for reducing plaque and tartar. The formula is reasonable, though PetLab does not disclose the amount of each ingredient, so you cannot confirm the kelp dose.
Is PetLab dental powder VOHC-approved?
No. PetLab ProBright is not on the VOHC accepted-products list. The only VOHC-accepted dental powder is ProDen PlaqueOff.
What is the best PetLab Co dental powder alternative?
For full percentage disclosure and a broader active set, Pure Majesty Pets Dog Dental Powder is the closest alternative. For a VOHC seal, ProDen PlaqueOff is the option.
How much does PetLab dental powder cost?
Roughly $32.99 to $42.95 depending on the size-specific tub, with a lower subscribe-and-save price.
Is dental powder as good as brushing?
No. Brushing is the gold standard. Powder is the practical choice when a dog refuses to be brushed.
The bottom line
PetLab Co ProBright is a credible dental powder with an evidence-backed main ingredient and strong brand availability, held back mainly by undisclosed ingredient amounts and no VOHC seal. If transparency and a wider set of dental mechanisms matter more to you, Pure Majesty Pets Dog Dental Powder is the stronger pick at a similar price; if the seal is what you want, go with ProDen PlaqueOff. Compare another popular option in our Iron Paws dental powder review.
Sources
- PetLab Co. ProBright Advanced product label and pricing, thepetlabco.com and retailer listings (accessed 2026).
- Gawor J, et al. “Effects of Edible Treats Containing Ascophyllum nodosum on the Oral Health of Dogs.” Frontiers in Veterinary Science, 2018;5:168 (PMC6080642).
- Veterinary Oral Health Council. VOHC Accepted Products for Dogs, vohc.org (accessed 2026).
- American Veterinary Medical Association. “Pet Dental Care.”
This article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian about your dog’s health and before starting any new supplement.