How do you store this product?

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.

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

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.

how much and how often should one apply this?

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.

When the liquid becomes oxidized does it become ineffective?

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.

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Timeless Skin Care 10% Vitamin C Serum with Vitamin E & Ferulic Acid - Boosts collagen production and minimizes fine lines and wrinkles - Face Serum for Oily & Dry Skin – Fragrance Free – 30ml

Timeless Skin Care 10% Vitamin C Serum with Vitamin E & Ferulic Acid - Boosts collagen production and minimizes fine lines and wrinkles - Face Serum for Oily & Dry Skin – Fragrance Free – 30ml

Product ID: 742321709

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Details

Skin Type
All
Product Benefits
Brightening
Use for
Face
Scent
Fragrance Free
Special Ingredients
Vitamin C E
Brand
Timeless Skin

🌿Fragrance-free, clean formula

🔬10% Vitamin C potency

🛡️Skin barrier defense

Description

✨ Unlock your skin’s glow-up with science-backed brilliance!

POLLUTION SHIELD - Strengthens skin’s natural barrier against environmental stressors
DAILY GLOW RITUAL - Just 2-3 pumps daily for collagen boost and wrinkle minimization
DUAL SKIN HARMONY - Perfectly balanced for both oily and dry skin types
RADIANCE RELOADED - 10% Vitamin C + E + Ferulic Acid for visibly brighter, even-toned skin
CLEAN BEAUTY PROMISE - Zero parabens, fragrances, or dyes—pure skincare confidence

Timeless Skin Care’s 10% Vitamin C Serum combines potent antioxidants Vitamin C, E, and Ferulic Acid to brighten skin, boost collagen, and protect against pollution. Designed for all skin types and free from parabens and fragrances, this 30ml serum delivers daily, visible anti-aging benefits with a clean, cruelty-free formula made in the USA.

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