Question 1

How do you store this product?

Accepted Answer

Please don't buy this product; I don't think they are from the legit timeless distributor, the last order that I made came with wrong vitamin c, cheap vitamin C. I'm very disappointed, and Amazon won't let me give a review.

Question 2

Has anyone actually tested the PH level upon receipt of the product and if so what was the result?

Accepted Answer

I tested it with a strip AND an actual pH tester.  The strip gave me a 5 (https://www.amazon.com/gp/product/B00S730YWG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) , at which point I contacted the company and they told me that the strips are unreliable.  They also sent me a screen shot of their own pH testing instrument with the 2.9 result. 
Then I purchased my own pH tester (https://www.amazon.com/gp/product/B01ESYG6KQ/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1). Then pH was 2.7.  I have been using the serum for about 8 months now and like it a lot.

Question 3

how much and how often should one apply this?

Accepted Answer

2-3 drops is all you need! Using more is not a benefit. This is because a little bit of vitamin C serum goes a long way: There’s a limit to how much vitamin C your skin can absorb in a day, so any extra product that you use will go to waste. Manufacturer says 2-3 drops. Can be applied 2x a day morning and night. Apply to cleaned and damp skin. Some dermatologists recommend applying a vitamin C serum in the morning in order to prevent damage from free radicals that can occur throughout the day. If you do choose to use your serum in the morning, you'll need to follow up with a layer of broad spectrum sunscreen, with an SPF of 30 or higher.  if you have sensitive skin, you might want to steer clear of vitamin C serum during daytime hours. In some cases, higher concentrations of vitamin C could make sensitive skin more prone to irritation and sunburn. Using it at night helps the skin repair.

Question 4

When the liquid becomes oxidized does it become ineffective?

Accepted Answer

No. It still works, it starts being ineffective when it gets to rusty- brown! Watch "hotandflashy" on YouTube at vit C serums, she explained there.

ASIN	B0992TC4RB
ASIN	B0992TC4RB
Active Ingredients	vitamin c
Best Sellers Rank	#4,642 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #136 in Facial Serums
Brand Name	Timeless Skin Care
Customer Reviews	4.3 4.3 out of 5 stars (1,844)
Department	unisex
Global Trade Identification Number	00858588004923
Item Form	Serum
Item Volume	30 Milliliters
Item Weight	30 Grams
Item model number	10CEF-1
Manufacturer	Timeless
Manufacturer	Timeless
Manufacturer Part Number	10CEF-1
Material Features	Antioxidant
Material Type Free	Non-greasy
Model Number	10CEF-1
Number of Items	1
Product Benefits	Brightening
Product Dimensions	2.1 x 2.1 x 4.8 inches; 1.06 ounces
Recommended Uses For Product	Provides Vitamins
Scent Name	Unscented
Skin Tone	All
Skin Type	All, Dry
Special Ingredients	20% vitamin C + E + ferulic acid serum
Target Use Body Part	Face
UPC	858588004923
UPC	858588004923
Unit Count	1.00 Fluid Ounces

Timeless Skin Care Vitamin C Serum with Vitamin E & Ferulic Acid - Brightening Serum - for Oily & Dry Skin - Fragrance-Free - 1 oz

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