Enciclopedia produselor cosmetice, sfaturi general valabile Options

[Diana.]

posturile despre probleme nou aparute au fost mutate la
Acnee: intimplari neplacute dupa folosirea anumitor produse, produse care intensifica acneea
Rog frumos sa se respecte subiectul. Multumesc pentru intelegere.

[happyCat]

Am gasit niste informatii foarte interesante care m-am gandit ca vor fi de folos fetelor care folosesc produse pe baza de AHA si BHA, dar nu numai.


PH affects the acid you use and how it works. The idea is not to disturb an acid (aha or bha) while it is on your skin, which can alter pH and effect it action on the skin.

Generally speaking an acid is effective for approximately 20 to 30 minutes on the skin surface, after that point the skin pH has risen enough to lessen the exfoliation action on the skin. The acid is effectively neutralized. During this 30 minute time frame, the acid is working at effective strong levels. Anything applied after 30 minutes will not hamper the effect of your acid, as the pH has already changed, and the acid action has slowed a lot.

If you use a BHA product with 3.2 pH (Paulas' 2% BHA Lotion) then immediately apply a treatment product on top, with 6.5 pH, the exfoliation action of your BHA is reduced by 75%. So applying a higher pH to your pH dependant acid will neutralize it sooner, or stop its action at the point you added the higher pH product.
If a 2% or 5% BHA product is applied and left on the skin, but not AHA product is following, wait 30 minutes before applying next product. (the 30 minute time frame allows the BHA to work at its most effective, and exfoliate at optimal levels. This is the recommended option for best exfoliation results)

Other Products are also pH dependant, and can be affected. Solution of L-Ascorbic Acid forms of Vitamin C are pH dependant. For good stability and effective action, a good Ascorbic acid product is about 2.0 pH. Since Vitamin C absorbs faster into the skin, you can generally have a shorter wait of about 10 to 15 minutes. Because of its fast absorption, it is not generally used as an exfoliate.(Assuming you want to use it as a treatment activity, not simply for its anti-oxidant effects)

Product Application by type

This is a rough guide for product application, based on type/absorbency. This is for products that are not pH dependant, nor limited by activity type. The thickness of a product, dictates its placement. You cannot apply a thin product (like a liquid) over a thick product (like a cream) and expect it to absorb well. The cream can be a barrier to the thinner product.

-Cleanser (may need to wait before exfoliate, if pH is a concern)
(optional pH adjusting product could be used here, after cleansing) before acid)
-Exfoliate (usually requires a wait time)
-Toner (Liquid water like products, such as toner/treatment solutions, liquid DMAE)
-Serum (Copper Serum, treatment Serums, DMAE thicker products)
-Gel (DMAE, differin)
-Oils (Emu, Jojoba, Almond, etc)
-Creams
-Sunscreen
-Foundations

[ioana8515]

cine ar putea sa ma ajute si pe mine in legatura cu deodorantele fara aluminiu. Am reusit sa fac o alergie de toate frumusetea la aluminiu si am o mare problema in a gasi produse care nu contin. Am folosit pentru o perioada ceva de la Sebamed si de la Vichy dar nu sunt multumita deloc

This post has been edited by Maàt: Mar 8 2009, 09:18 PM

Reason for edit: scis culoarea rosie si marimea obositoare a fonturilor

[Diana.]

Data viitoare cind scrii cu rosu, iei ban. (IMG:style_emoticons/default/ban.gif) In plus, esti total off-topic.
Ia citeste mataluta regulamentul, sa nu avem vorbe.