Best teeth whitening strips are available in a number different varieties based on the concentration of Hydrogen peroxide on them. After viewing, celebrities in the TV programs and their inhibition less smiling, their attractiveness increases with their sparkling white teeth doing the job for them. People learn from the commercial advertisement in respect of teeth whitening strips.

Because there is more than one variety, of teeth whitening strips designed with a specific purpose, often people are confused regarding, which one to buy. Following are some of the varieties of teeth whitening strips with their details of concentration of Hydrogen peroxide and purpose of giving different concentrations in these strips:

1. Classic Variety:
The Classic variety was the first to be introduced in the market and is having the weakest concentration of hydrogen peroxide in it i.e. 6 %. As for as the chemical used in the classic strip is the same as used by the dentists, the only difference is in concentration. Dentists use the strip having much higher concentration gel on it.
The classic variety of teeth whitening strip would have produced its results in some persons, hence it is very popular considering the general safety factor, as compared to other varieties of teeth whitening strips which contain gel having much higher concentration of hydrogen peroxide requiring more care in their use.
Classic variety is appropriate for persons having teeth sensitivity. The oversensitivity is a side effect of the strips due to excessive use of the teeth whitening strips. Sensitivity experienced with the strips is not a matter of concern because it can be countered by using a fluoride containing tooth paste or doing gargles with the solution of fluoride tooth paste for about half a minute.
The suitability of classic strips is due to its safe use in old age persons and teenagers needing to whiten their teeth. Other variety, of tooth whitening strips are very strong and are not suitable for use in persons having teeth sensitivity. Classic variety contains 56 strips 28 for the upper teeth and 28 for the lower teeth recommended for 2 weeks use of 30 minutes duration each day. One can keep the teeth white for one year provided one does not smoke and does not take teeth staining drinks like coffee, coke etc.
2. Professional Teeth Whitening strips:
This variety was introduced after Classic introduction in the market. From the name one can make out it to be having higher efficacy. Actually it is just little more potent than Classic variety, because it has 6.5% hydrogen peroxide gel. The professional variety also suits teenagers or persons with higher sensitivity of teeth. The teeth getting sensitive, is an ordinary side effect, which can be alright after use of fluoride based tooth paste.
Professional variety is pack has 84 strips to be used for 3 weeks recommended for using for 30 minutes, two times a day.
3. Premium Whitening Strips:
Premium variety of teeth whitening strips has become popular over previously discussed varieties, because of extra whitening effect due to concentration of hydrogen peroxide, which is 10 % and is lower than strips used by the dentist. The use of this variety is beneficial to more number of persons. The response is better on yellow teeth, which is still weak on grey teeth. The packing of premium whitening strip contains 28 strips to be used for 7 days with 30 minutes duration twice a day. Teeth become better, but are far from perfection.
Besides the above mentioned varieties there more varieties to teeth whitening strips with little variations in hydrogen peroxide concentration like premium plus has 10 % hydrogen peroxide 40 strips to be used for 10 days.
Supreme Variety has 14 % concentration of hydrogen peroxide and is used by the dentist only because extra care is required to use them, which can be possible in dental clinic only. It is this variety only, which gives perfect teeth whitening effect and results produced last for longer time than other varieties.