How long does this last?

In the dark glass bottle with dropper in the frig, the 120ml (4 oz) refill lasts my wife and I several months, transferring into small 10ml bottles for use. But just got it in a new plastic dispenser bottle that's (intentionally?) wasteful and unlikely to last. The product is unparalleled, but I'm sending this package back.

I don't know the pH ( Timelessha.com should be able to help--I find their customer service to be on point), but common sense would dictate that the solution was acidic, given it's high Vitamin C concentration. I can tell you that this serum WORKS...it's as efficacious as a Skinceuticals formulation I was using at a fraction of the $150 I was paying. Good luck!

Hi, is the product clear and not gone yellow? Last time I ordered it was all oxidised.

Hi there, common misconception is that this product is "bad" if it's not clear. Per the manufacturer: When freshly manufactured, the 20% Vitamin C + E Ferulic Acid serum is cloudy and thick in appearance, with slight yellowing. As the serum begins to age it starts to clear up, then begins with hints of yellowing, which is normal due to the Ferulic Acid, not the vitamin C. As long as it is in a yellow state, it is okay to use.

How far out is the 4oz bottle expiration date (if you don't refrigerate it)? If you do refrigerate it, should it be put in fridge or freezer?

I honestly don't remember the exp dates, but I do keep it in the refrigerator and it stays nice and clear for several months (or until I use it up). I've been using this product for several years on my face, hands and arms and find the 4 oz is by far the best way to go. The prices flux considerably so keep an eye on that!

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Timeless 20% Vitamin C + E Ferulic Acid Serum, Antioxidant, 4 fl oz

Product ID: 15446331

Details

Product Benefits
Brightening
Scent
Unscented
Skin Type
All
Special Ingredients
20% vitamin C
Use for
Face

💧Lightweight, non-greasy gel formula

🔬20% Vitamin C potency

🛡️Antioxidant-rich skin barrier defense

¥24332

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Glow like you mean it with Timeless brilliance! ✨

GENEROUS 4 FL OZ SUPPLY - More serum, more glow—ample volume to maintain your glow-up routine without compromise.
TRIPLE ANTIOXIDANT SHIELD - Vitamin C, E, and Ferulic Acid team up to protect your skin from environmental stressors and pollution.
MEGA DOSE BRIGHTENING POWER - Experience visibly radiant skin with a potent 20% vitamin C infusion that accelerates healthy cell turnover.
UNIVERSAL SKIN COMPATIBILITY - Formulated for all skin types—dry, oily, or combination—ensuring daily hydration without heaviness.
CLEAN CRUELTY FREE CONFIDENCE - Zero parabens, fragrances, or dyes, crafted with ethical standards for the mindful skincare enthusiast.

Timeless 20% Vitamin C + E Ferulic Acid Serum is a high-potency antioxidant formula designed to brighten skin, even tone, and support collagen production. Its lightweight, non-greasy gel texture suits all skin types and daily use, fortified with a powerful blend of vitamins C and E plus Ferulic Acid. Cruelty-free and free from parabens, fragrances, and dyes, this 4 fl oz serum is a top-ranked, dermatologist-loved choice for professional-grade skincare.

Specifications

ASIN	B00XBOUAAW
ASIN	B00XBOUAAW
Active Ingredients	vitamin c,vitamin e
Best Sellers Rank	#437 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #20 in Facial Serums
Brand Name	Timeless Skin Care
Customer Reviews	4.3 4.3 out of 5 stars (13,684)
Item Form	Gel
Item Highlight	Vitamin C Serum for Even Skin Tone and Collagen Support, Antioxidant-Rich Advanced Skincare Formula, Lightweight
Item Weight	4 ounces
Item model number	CEF-REFILL
Manufacturer	Timeless Skin Care
Manufacturer	Timeless Skin Care
Manufacturer Part Number	CEF-REFILL
Material Features	Antioxidant, Natural
Material Type Free	Non-greasy
Model Number	CEF-REFILL
Number of Items	1
Product Benefits	Brightening
Product Dimensions	2.38 x 2.38 x 6.41 inches; 4 ounces
Recommended Uses For Product	Provides Vitamins
Scent Name	Unscented
Skin Tone	All
Skin Type	All
Special Ingredients	20% vitamin C + E ferulic acid serum
Target Use Body Part	Face
Unit Count	4 Fluid Ounces

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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¥24332

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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