History of Nano-Hydroxyapatite (nHAp)
In the late 1970s, NASA scientists searched for a cure for Astronauts returning from zero gravity environments that were experiencing bone and tooth enamel loss.
Their treatment included introducing Nano-Hydroxyapatite (a naturally occurring mineral that makes up 97% of tooth enamel) into toothpaste to help restore and remineralize tooth enamel.
The mineral was so effective that a Japanese toothpaste company, Sangi, purchased the patent from NASA in 1980 to use in toothpaste. The rest is history.
For over 40 years, nHAp in toothpaste has proven to be the most effective solution for helping to stop tooth decay all over the world.
After
Before
The 10% Difference
10% Nano-Hydroxyapatite is proven to deliver the optimal levels of protection, hypersensitive management, and whitening benefits when used at the correct concentration, 10%, and the correct partial size. While other brands may include nHAp, Dr. Jen's includes the full 10% for optimal results.
The added benefits to Nano-Hydroxyapatite that fluoride alone cannot offer
Smooths teeth creating a glossier and whiter smile
Nano-Hydroxyapatite fills pore and micro lesions in the enamel creating a smoother and whiter surface for a brighter-looking smile
Protects teeth from sensitivity
nHAp fills the pore of exposed dentin and other weak surfaces of the enamel protecting the teeth from sensitivity.
Cleaner teeth
With brushing, nHAp adheres to the plaque making it easier to remove plaque and food for the teeth.
Dr. Jen
Vs. Other Nano-Hydroxyapatite Toothpaste Brands
Dr. Jen Natural
The Other Guys
Frequently Asked Questions
Dr. Jen's is the #1 dentist-recommended nano-hydroxyapatite toothpaste, trusted by dental professionals nationwide. Dr. Jen has spent six years perfecting these advanced formulations, sourcing the highest-grade nano-hydroxyapatite available.
Our rod-shaped crystals meet rigorous EU safety standards for synthetic nHAp, and our eggshell nHAp is ISO certified. While other brands have approached us wanting to use our premium sources, we protect the integrity of our supply chain to ensure every tube meets our exacting standards.
Dr. Jen Super Paste combines premium nano-hydroxyapatite with fluoride, clinically proven to outperform fluoride-only toothpastes. This triple-action formula uses nano-hydroxyapatite, fluoride, and xylitol to keep enamel strong and resilient. Available in Mint and Strawberry.
Dr. Jen Fluoride-Free delivers the same cavity protection as fluoride using premium-grade nano-hydroxyapatite at the optimal 10% concentration. Blended with our proprietary essential oils, it freshens breath while supporting a healthy oral microbiome. Available in Mint and Strawberry.
Dr. Jen Eggshell is the first and only naturally-derived nHAp toothpaste, formulated with 10% eggshell nano-hydroxyapatite. Eggshells naturally contain magnesium and zinc, which promote higher mineral uptake for enhanced enamel protection. Available in Mint and Orange Mango.
We use a proprietary blend of natural essential oils, no synthetic flavoring. Our mint paste contains essential oils with coconut oil-based foaming, while our strawberry paste is naturally foam-free. You'll never find sodium lauryl sulfate (SLS) in any Dr. Jen's formula.
Nano-hydroxyapatite (nHAp) is composed of calcium and phosphate minerals, the same minerals that make up 97% of your tooth enamel and the mineral portion of your bones. The "nano" means the particles are extremely small, measured in nanometers, allowing them to behave like your natural enamel crystals.
How it works:
- Absorbs and removes dental plaque
- Replenishes lost calcium and phosphate minerals
- Fills in micro-fissures on tooth surfaces
- Reduces sensitivity by sealing exposed dentinal tubules
Think of it as giving your teeth the building blocks they need to stay strong.
There's something we want you to know because behind every tube is a story that started long before it reached your bathroom shelf.
It began in a hospital room.
Years ago, Dr. Jen's daughter became dangerously ill with a life-threatening stomach condition. As any parent would, Dr. Jen searched for every way to support her daughter's healing, down to the smallest details, including something as simple as toothpaste.
What she discovered shocked her.
Fluoride-free toothpastes aren't regulated. Brands can claim "nano-hydroxyapatite" while using cheap, low-quality versions or including so little that it does almost nothing. Labels didn't tell the full truth, and Dr. Jen couldn't find a single toothpaste that matched what the science said her daughter needed.
In that hospital room, one thing became clear: if the right toothpaste didn't exist, she would have to create it.
A mother's worry became a mission.
Dr. Jen spent years studying particle size, purity, concentration, safety, and biocompatibility. She rejected anything that didn't meet the highest standard, even when it cost more.
- Only true high-grade nano-hydroxyapatite
- Only the optimal concentration proven to protect enamel
- Only clean, gut-friendly ingredients gentle enough for someone fighting for their health
No shortcuts. No compromises. Just a formula built with the same care she wanted for her own child.
That's why our toothpaste costs more. Because it was never created to be the cheapest. It was created to be the safest, the purest, and the most effective. Born from fear, love, science, and the determination of a mother who refused to settle.
And yet, it comes down to 25 cents a day.
For up to 25 cents per day, you give your enamel the level of protection research actually supports, without the gut-disrupting ingredients found in many conventional formulas. About the same as your morning coffee, but for your long-term health.
Brush as you normally would, then spit out the excess but don't rinse. For maximum mineral uptake, wait 30 minutes before eating or drinking. This allows the nano-hydroxyapatite to fully bond with your enamel.
As always, discuss any specific questions or concerns with your dental team, who knows your personal oral health best.
