Whitening

Peracid · Not hydroxyapatite

PAP whitening is a bleach.

Quick answer

PAP is phthalimidoperoxycaproic acid, a peracid used in some cosmetic whiteners. It is a bleaching chemistry. It is not hydroxyapatite, and it is not the purple color-corrector you see in other whitening products.

Klyyr One+ lists hydroxyapatite. It does not list PAP, hydrogen peroxide, or an optical dye. One+ does not make a whitening claim.

  • 01

    PAP is a peracid

    Phthalimidoperoxycaproic acid releases oxidizing power. That is bleach chemistry, in the same family of ideas as peroxide, with a different molecule.

  • 02

    Purple paste is a third thing

    A color-corrector changes how light bounces off the tooth. It does not remove stain the way an oxidizer does, and it is not hydroxyapatite.

  • 03

    One+ is none of those

    The label lists hydroxyapatite, nano and micro. It does not list PAP, peroxide, or a blue or purple dye.

Route What it is The chemistry Klyyr One+ In One+?
PAP Phthalimidoperoxycaproic acid, a peracid No
Hydrogen peroxide The oxidizer in most bleach whiteners No
Optical dye Shifts the look of the tooth while it sits there No
Charcoal A black abrasive-pigment trend No
Hydroxyapatite The mineral in enamel and dentin Yes. 10% nano + micro, listed
Whitening claim on the box Needs a named route if you want to know what you bought One+ does not make one
Sensitivity after bleach Oxidizers can sting A reason some people look for a non-peroxide paste

PAP is identified from the PubChem record for phthalimidoperoxycaproic acid. Peroxide whitening is described in the ADA whitening overview. One+ ingredient facts come from its label. None of these sources tested One+ as a whitener, because One+ does not claim whitening.

Sources behind this answer

These sources separate a peracid, a peroxide bleach, and the mineral on the One+ label.

  1. PubChem

    Phthalimidoperoxycaproic acid

    PAP is phthalimidoperoxycaproic acid, an organic peracid. The record identifies the molecule. It does not make it a tooth mineral.

    Read the PubChem record

  2. American Dental Association

    Whitening overview

    The ADA's whitening overview describes peroxide-based bleaching and the sensitivity that can come with it. PAP is a different molecule in the same broad job: changing color by chemistry, not by adding enamel mineral.

    Read the ADA whitening overview

  3. Current Klyyr label

    One+ formula facts

    One+ lists hydroxyapatite and does not list PAP, hydrogen peroxide, or a color-correcting dye. It publishes no whitening claim.

    Read the One+ product page

How to choose

If you want a bleach

Look for the oxidizer on the label, PAP or peroxide, and ask your dentist about sensitivity. One+ is not that product.

If a brand says hydroxyapatite whitens

Ask whether they mean a measured shade change or a smoother surface. One+ does not make a whitening claim. The mineral and the marketing should stay in separate sentences.

The Klyyr One+ formula

One+ is fluoride-free toothpaste with a clearly disclosed 10% nano + micro hydroxyapatite blend, 16 listed ingredients, peppermint + spearmint, no SLS, and no artificial dyes.

  • 01

    10% hydroxyapatite

    Combined nano + micro hydroxyapatite, disclosed on the label. Ten percent is not a universal efficacy threshold.

  • 02

    16 listed ingredients

    Water, Sorbitol, Glycerin, Potassium Sorbate, Hydroxyapatite (nano & micro), Xylitol, Sodium Cocoyl Glutamate, Cellulose Gum, Xanthan Gum, Zinc Citrate, Aloe Vera, Mentha Piperita (Peppermint) Oil, Mentha Viridis (Spearmint) Leaf Oil, Menthol, Sodium Benzoate, Stevia Rebaudiana Leaf/Stem Extract.

  • 03

    What is not in it

    0 ppm fluoride. No SLS. No artificial dyes. Sodium cocoyl glutamate is the surfactant.

  • 04

    120 g aluminum tube

    4.23 oz, approximately 90 brushings. Aluminum tube, HDPE cap. Recycle where accepted locally.

In short

PAP whitens by oxidation. Hydroxyapatite is the mineral teeth are made of. One+ is the second, not the first.

01 What is PAP in toothpaste?

PAP is phthalimidoperoxycaproic acid, a peracid used in some whitening products. It is not hydroxyapatite.

02 Is PAP safer than peroxide?

It is a different oxidizer, not a mineral. Safety and sensitivity depend on the finished product and on your teeth. The ADA whitening overview is about peroxide bleaching. It is not a ranking of PAP brands.

03 Does One+ contain PAP?

No. It also contains no hydrogen peroxide and no optical whitening dye.

04 Is purple toothpaste the same as PAP?

No. A purple or blue color-corrector changes appearance with a dye. PAP is a peracid. Hydroxyapatite is a mineral. Read the ingredient list for which one you actually bought.

Read the full FAQ →

Shop

One tube. Pick the question you came with.

One+ is the only product in each collection. Pick the page that matches what you came for.

  1. 01 Peroxide-free toothpasteNo peroxide on the One+ label.
  2. 02 Toothpaste after whiteningDaily paste once a bleach is finished.
  3. 03 Whitening toothpaste questionWhat the mineral does not automatically do.
ONE+
No PAP. No peroxide. Hydroxyapatite, disclosed.
Shop One+ — $12.95 Subscribe & save 25%