Hello. Terms of use rate. displayed on the web page It's just the recommended usage rate. Under the following conditions: 1. The rate suitable for general use 2. The rate prescribed by the FDA 3. The rate that the manufacturer has tested that it is at a level that can be effective to see results. which because it was not stated that such rate What is the rate under what conditions? Therefore, it may cause members to misunderstand. usage exceeds the specified rate May cause skin irritation Under the above conditions that are notified, if in case 1, overuse may cause the product to be unsuitable for use, such as the use of
Vitamin E which can be used at a rate of 100% (directly applied to the skin) but due to its viscous nature Therefore, it is set to use not more than 1.0%. If this is the case 2, this must be strictly adhered to because the FDA has already tested that the use rate exceeds this. It can be dangerous, for example
Salicylic Acid FDA requires no more than 2.0% use more than this found to irritate the skin, peeling if it is the 3rd case. In this case, most of the over use. not useful but definitely not Because the manufacturer may use different assumptions in considering the developer.
สูตรเครื่องสำอาง For example, manufacturers tend to view An increase in utilization rate of x % must also be able to see an improvement of no less than x % (meaning 1% more of the ingredient is used, the effect must be increased by 1%). The formula developer thinks it's still within the budget of the formula, just a little more efficiency is fine. Case of 1,3-
Propanediol is case 1, i.e. by normal formula You will never find any formula, use 1,3-
Propanediol at rates up to about 90%. of the formula, but this does not mean that using 1,3-
Propanediol applied directly to the skin (100%) Will cause skin irritation
Vitamin E that the recommended usage rate is 0.01-1.0%, but if you search on the internet, you will find that some brands contain
Vitamin E 100% Available also.
Is it a different grade? Can it be used this high? Will there be any side effects?
The company guarantees that The raw materials that the company sells are definitely of a grade that is not inferior to the ones used by The Ordinary.