Myth : Soaps or shampoos which produce more lather have better cleansing action
Fact – Cleansing action is related only to detergent property. Lather or foam production is dependent on addition of foam boosters to soaps and shampoos. Lather is useful as it functions to spread the detergent but it does not participate in cleaning. So the amount of lather production is not proportional to the cleansing activity.
Myth: Regular oiling prevents hair fall, dandruff and greying of hair.
Fact- Hairfall can be because of many factors other than oil application. Oil acts as a good pre wash conditioner and protects the cuticles to make hair smooth and shiny. However, too much oil can have adverse effects. The application of hair oil for 30–60 min is sufficient. Coconut oil is absorbed in the cuticle layer and may be used as a conditioning agent. Excessive oiliness increases dandruff. Greying of hair may not be prevented by oiling
Myth: The higher the SPF of the sunscreen the better is the protection
Fact – An ideal sunscreen should block both UVA and UVB rays. SPF is a measure of UVB protection. Broadest degree of protection from sunlight is offered by sunscreens having SPF 30 or greater together with good UVA blockers. Measure of UVA blocking is by persistent pigment darkening(PPD) protection factor.
How to use Sunscreens?
- Sunscreens should be applied 20 t0 30 minutes before stepping out in the sun. They have to be reapplied every 3 hours for continued protection.
- Adequate quantity needs to be applied for optimal protection. 2mg/cm2 is the required amount.
- Tea spoon rule for sunscreen application
>1/2 tsp(~3ml) is needed for face and neck
>1/2 tsp(~3ml) is needed for each arm,
>1tsp is needed for leg
>1tsp is needed for chest
>1tsp is needed for back
- Sunscreen should be applied every day of the year. It is necessary even on a cloudy day
Sunscreens with SPF 30 or greater with good UVA blockers are ideal.
