How to Apply Chem Free Sunscreen
Thank you for this info! I have always applied the same amount of physical ss (chem. free) as I did of chemical sunscreen! This is going to increase the chem. free sunscreens that I can use on my face/neck because it will be more cosmetically elegant! It's nice to know I will still get the labeled SPF/protection by applying it properly!
yes,I would like to know too how ofter do I need to reapply chem-free SS?thank you
How much sunscreen should I apply if it is a combination of chemical sunscreen (avobenzone-2%, ecamsule-3%, octocrylene-10%) and titanium dioxide (5%)?
Hi Dr. Neal Schultz,
Can sunscreens that have chemical and fisical UV filters, like Avène sunscreens in Europe, be applied like this (small amount) or it's just to cham free sunscreen?
Composition of an Avéne sunscreen:
- Avéne Thermal Spring Water
- MPI (ZnO + TiO2 micronized and coted)
- Tinosorb M + S
- Pretocopheryl
http://www.eau-thermale-avene.com/public/avene/html/toolkit/flash/site.p...
@Tom: Chem free sunscreen needs to be reapplied just as often as traditional sunscreen: after you swim, after you sweat, and every three to four hours when not doing activities (because of insensible perspiration).
@Karen: It depends if they are in different products or the same one. If in the same product, then apply the usual amount for a conventional chemical (non chem free) sunscreen. If in different products why use both? What are their respective SPF's? Please let me know. Thanks.
@Hayley: Apply the usual amount for a conventional chemical (non chem free) sunscreen as long as there is no visible white residue. If there is a visible white residue, decrease the amount until you see no visible white residue after application.
How often do you have to reapply chem-free sunscreen?