FAQ Dental Care Products: Frequently asked questions about our products
FAQ: Dental Care with BioHAP
The use of fluoride in toothpaste is particularly controversial for children under 6 years of age. Children in particular swallow a large portion of the toothpaste.
Due to the intake of additional sources of fluoride (vitamin D supplements with fluoride, fluoridated salt, etc.), the risk of developing fluorosis (white spots on the teeth caused by increased fluoride intake) increases significantly. For example, the German Federal Institute for Risk Assessment points out that if a children’s toothpaste with 500 ppm fluoride is swallowed, just as much fluoride is ingested as, for instance, through fluoridated salt.
According to the new recommendations, the amount of swallowed fluoride can therefore double. The risk of fluorosis is significantly higher with toothpastes that have a higher fluoride content (from 1000 ppm).
KAREX relies on the tooth-related active ingredient Hydroxyapatite (BioHAP) in all products. When swallowed, it is simply dissolved in the stomach. Numerous studies confirm its effectiveness: Hydroxyapatite repairs enamel with every brushing, reduces bacterial adhesion, and thus provides effective protection against cavities.
Our tooth enamel consists almost entirely of Hydroxyapatite. That is why BioHAP (biomimetic Hydroxyapatite) is used as an active ingredient in oral care. The highly concentrated active ingredient also serves as a source of calcium and protects our teeth against bacterial acids. Numerous studies confirm the benefits of Hydroxyapatite in the field of oral care and prevention.
Numerous publications confirm the effectiveness of BioHAP in dental care. These include not only laboratory studies (in vitro) but also studies with test specimens under oral cavity conditions (in situ), as well as, in particular, clinical studies on patients (in vivo).
For more information, feel free to read the German short summary or the original study. You can get an overview of the large number of studies on Hydroxyapatite as an active ingredient in dental care by browsing our study database (usable without registration).
FAQ: KINDER KAREX Toothpaste
KINDER KAREX is suitable for babies from the first tooth. Thanks to the tooth-related active ingredient Hydroxyapatite (BioHAP), the toothpaste is suitable for all young children from 0 years of age who are not yet able to spit properly. Babies and young children can effectively protect their teeth against cavities with KINDER KAREX. The flavor has been chosen by children for children.
About 97% of our tooth enamel and around 70% of our dentin consist of Hydroxyapatite. Tooth enamel forms the outer protective layer of the teeth. Bacteria attach to the enamel and, with the help of sugar from food, produce harmful acids. These acids dissolve the enamel, and cavities develop.
KINDER KAREX Toothpaste contains the tooth-related active ingredient Hydroxyapatite, which adheres to the tooth while brushing. With daily brushing, even small defects in the enamel can be repaired by the active ingredient Hydroxyapatite, and a protective layer can form on the tooth. This protective layer makes it more difficult for bacteria to adhere to the tooth. KINDER KAREX with Hydroxyapatite thus provides effective protection against cavities.
KINDER KAREX Toothpaste is also suitable for electric toothbrushes. KINDER KAREX Toothpaste is easy to dose and can be applied well even on smaller brush heads.
FAQ: JUNIOR KAREX Toothpaste
JUNIOR KAREX Toothpaste is recommended for all children from 6 years of age. The formula and mint flavor are optimally tailored to this age group’s preferences for a toothpaste and to the specific needs of the mixed dentition.
During the phase of tooth transition, the so-called mixed dentition consists of primary and permanent teeth. Both have different characteristics:
- Teeth and dentition: primary teeth have thinner enamel, are more sensitive, and require gentle cleaning. Permanent teeth are larger and often closer together. In addition, the grooves (fissures) on the chewing surface of permanent molars are deeper. Therefore, permanent teeth have an increased risk of cavities. Dental plaque must be removed gently and effectively.
- Fixed braces: plaque forms around the brackets and often cannot be completely removed. JUNIOR KAREX with the active ingredient BioHAP and additional calcium sources also protects hard-to-reach areas from cavity-causing bacteria and harmful acids, thus helping to prevent cavities.
- Gums: when wearing brackets and during tooth eruption, the gums of children and adolescents can be irritated, reddened, and partially inflamed. The formulation with allantoin soothes and protects irritated gums.
About 97% of our enamel and approx. 70% of our dentin consists of Hydroxyapatite. Enamel forms the outer protective layer of the teeth. Bacteria adhere to the enamel and, with the help of sugar from food, produce harmful acids. These acids dissolve the enamel: cavities develop.
JUNIOR KAREX Toothpaste contains the tooth-related active ingredient Hydroxyapatite, which deposits on the tooth while brushing. With daily brushing, even small defects in the enamel can be repaired by the active ingredient Hydroxyapatite, and a protective layer can be formed on the tooth. This protective layer makes it more difficult for bacteria to adhere to the tooth. JUNIOR KAREX with Hydroxyapatite thus provides effective protection against cavities.
During the development of JUNIOR KAREX Toothpaste, special care was taken to use only the necessary ingredients. JUNIOR KAREX Toothpaste contains Hydroxyapatite as the main active ingredient and is free from fluoride and free from sodium lauryl sulfate.
FAQ: MAMA KAREX Toothpaste
Due to hormonal changes, teeth and gums can become sensitive during pregnancy. In addition, there is an increased risk of cavities. Since increased fluoride intake during pregnancy and breastfeeding can have a negative effect on the child, it makes sense to avoid fluoride in dental care during this time.
MAMA KAREX Toothpaste is the ideal toothpaste for expectant or breastfeeding mothers. It works effectively against cavities and protects sensitive gums with BioHAP – without fluoride.
Fluorides are an ingredient in many toothpastes and mouthwashes because they have been proven to protect against cavities. However, a large number of scientific studies indicate that fluorides can have a negative effect on the child if too much is ingested during pregnancy and/or breastfeeding (LINK to study). Therefore, fluoride intake should be minimized during this time.
The active ingredient BioHAP in MAMA KAREX is at least as effective as fluoride in cavity prevention. In addition, BioHAP* has a positive effect on gum health and is harmless if swallowed. Therefore, MAMA KAREX Toothpaste is the ideal alternative to fluoride-containing toothpastes during pregnancy and/or breastfeeding.
MAMA KAREX does not contain any animal-derived ingredients and is therefore also suitable for vegans.
FAQ: BABY KAREX Toothpaste
Effective cavity protection is important from the very first tooth. However, babies and toddlers swallow almost all of the toothpaste while brushing, as they are not yet able to spit at that age.
BABY KAREX Toothpaste is the ideal introduction to daily toothbrushing. From the first tooth, it gently cleans and at the same time provides effective protection against cavities – with BioHAP, without fluoride.
The BABY KAREX formula contains only the most essential ingredients and completely avoids fluoride, surfactants, and flavorings, and is harmless if swallowed.
BABY KAREX Toothpaste can be used without hesitation from the very first tooth. It contains only the most essential ingredients, is completely free from fluoride, surfactants, and flavorings, and is therefore harmless even if swallowed.
BABY KAREX provides effective protection against cavities while being fluoride-free. Therefore, unlike other children's toothpastes, it is not subject to any dosage restrictions, which makes the daily toothbrushing routine with your child easier.
BABY KAREX Toothpaste has been specially developed as an introduction to the toothbrushing routine. From the very first tooth, it gently cleans and at the same time provides effective protection against cavities – with BioHAP and without fluoride. In addition, the BABY KAREX formula contains only the most essential ingredients and completely avoids surfactants and flavorings in order to protect the sensitive oral cavity of the little ones. The taste is pleasantly mild and tailored to babies’ flavor preferences. We recommend BABY KAREX Toothpaste for ages 0–2 years.
KINDER KAREX Toothpaste has been developed for the care of sensitive milk teeth. It offers effective cavity protection with BioHAP, without fluoride. KINDER KAREX remineralizes the teeth and minimizes bacterial adhesion. The fluoride-free formula reduces the risk of fluorosis. The mild flavor is popular with children. We recommend KINDER KAREX Toothpaste up to 6 years of age as a follow-up product to BABY KAREX. However, it can also be used without hesitation for babies from 0 years of age.
FAQ: KAREX Tooth Protection Gel
KAREX Tooth Protection Gel is a highly concentrated gel with biomimetic Hydroxyapatite (BioHAP) and calcium to support and complement daily oral care for children and adults. Hydroxyapatite consists of the minerals calcium and phosphate and is the main component of our teeth.
KAREX Tooth Protection Gel is suitable for children and adults from the eruption of the first tooth.
For optimal effectiveness, KAREX Tooth Protection Gel should be applied once daily after toothbrushing using a finger or a soft toothbrush to all tooth surfaces (apply only, do not brush) and then spread with the tongue. Application can be made easier by placing several small amounts of the gel on the finger/toothbrush and distributing it in the mouth.
Ideally, KAREX Tooth Protection Gel should be used in the evening after brushing your teeth. After application, we recommend not rinsing your mouth. This allows the gel to work particularly well overnight.