---
product_id: 259983966
title: "20% Vitamin C + E Ferulic Acid Serum - 4 Fl Oz - Lightweight, Non-Greasy Formula - Use Daily to Brighten, Restore & Correct Skin - Recommended for All Skin Types"
brand: "timeless skin care"
price: "฿10653"
currency: THB
in_stock: true
reviews_count: 13
category: "Timeless Skin Care"
url: https://www.desertcart.co.th/products/259983966-20-vitamin-c-e-ferulic-acid-serum-4-fl-oz
store_origin: TH
region: Thailand
---

# Vegan & paraben-free formula 20% Vitamin C potency 24/7 environmental protection 20% Vitamin C + E Ferulic Acid Serum - 4 Fl Oz - Lightweight, Non-Greasy Formula - Use Daily to Brighten, Restore & Correct Skin - Recommended for All Skin Types

**Brand:** timeless skin care
**Price:** ฿10653
**Availability:** ✅ In Stock

## Summary

> ✨ Glow like you mean it with Timeless brilliance!

## Quick Answers

- **What is this?** 20% Vitamin C + E Ferulic Acid Serum - 4 Fl Oz - Lightweight, Non-Greasy Formula - Use Daily to Brighten, Restore & Correct Skin - Recommended for All Skin Types by timeless skin care
- **How much does it cost?** ฿10653 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/259983966-20-vitamin-c-e-ferulic-acid-serum-4-fl-oz)

## Best For

- timeless skin care enthusiasts

## Why This Product

- Trusted timeless skin care brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pollution Shield:** Provides continuous defense against environmental stressors and pollutants.
- • **Tone Transformer:** Evens out skin tone and texture, reducing discoloration and unevenness.
- • **Collagen Catalyst:** Stimulates collagen production for firmer, youthful skin texture.
- • **Radiance Reloaded:** Delivers a potent 20% Vitamin C boost to brighten and revive dull skin daily.
- • **Clean Beauty Commitment:** Formulated without parabens, sulfates, dyes, or fragrances—100% vegan and cruelty-free.

## Overview

Timeless Skin Care’s 20% Vitamin C + E Ferulic Acid Serum is a lightweight, non-greasy daily treatment designed for all skin types. It brightens dull complexions, promotes healthy cell turnover, stimulates collagen, and protects against environmental damage—all in a clean, vegan, and cruelty-free formula that’s free from parabens, sulfates, dyes, and fragrances.

## Description

PARABEN FREE | SULFATE FREE | NO FRAGRANCE | DYE FREE | CRUELTY FREE | VEGAN The Brightener -Â Give your skin a megadose of Vitamin C. Our 20% Vitamin C + E + Ferulic Acid serum brightens skin, builds collagen, and evens out tone. Enhanced with Vitamin E & Ferulic Acid, this serum is a great pick me up for dull, discolored, and stressed skin, while providing 24/7 protection against environmental pollutants. Recommended for : All skin types

Review: Right product - Good Price and the Right product With New batch code Complete value for money
Review: Original Product - Original product, will buy from them again.

## Features

- Brightens dull complexions
- Promotes healthy cell turnover
- Helps maintain & prevent uneven skin texture & tone
- Stimulates collagen production
- Provides protection against environmental stressors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00XBOUAAW |
| ASIN  | B00XBOUAAW |
| Best Sellers Rank | #5,680 in Beauty ( See Top 100 in Beauty ) #312 in Hair Styling Serums |
| Customer reviews | 4.1 4.1 out of 5 stars (10,092) |
| Date First Available  | 2 November 2015 |
| Is Discontinued By Manufacturer  | No |
| Item model number | CEF-REFILL |
| Item model number  | CEF-REFILL |
| Manufacturer | Timeless Skin Care |
| Manufacturer  | Timeless Skin Care |
| Product Dimensions | 6.05 x 6.05 x 16.28 cm; 113.4 g |
| Product Dimensions  | 6.05 x 6.05 x 16.28 cm; 113.4 g |

## Product Details

- **Product benefits:** Brightening
- **Scent:** Collagen
- **Skin type:** Normal
- **Special ingredients:** 20% vitamin C + E ferulic acid serum
- **Use for:** Face

## Images

![20% Vitamin C + E Ferulic Acid Serum - 4 Fl Oz - Lightweight, Non-Greasy Formula - Use Daily to Brighten, Restore & Correct Skin - Recommended for All Skin Types - Image 1](https://m.media-amazon.com/images/I/61yfoKmAToL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How long does this last?**
A: 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.

**Q: What is the pH?**
A: 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!

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

**Q: 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?**
A: 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!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Right product
*by M***B on 17 November 2025*

Good Price and the Right product With New batch code Complete value for money

### ⭐⭐⭐⭐⭐ Original Product
*by J***E on 13 November 2025*

Original product, will buy from them again.

### ⭐⭐⭐⭐ Good in use i liked it
*by A***Y on 19 August 2019*

Good product

## Frequently Bought Together

- Timeless Skin Care Vitamin C Serum with Vitamin E & Ferulic Acid - Brightening Serum - for Oily & Dry Skin - Fragrance-Free - 4 oz
- Timeless Skin Care Matrixyl Synthe’6 Serum - Face Serum for Skin Care - with Hyaluronic Acid for Hydration - Pouches
- Timeless Skin Care Coenzyme Q10 Serum - Skin Care Serum for Smoothing - Fragrance-Free - Coenzyme Q10 - with Hyaluronic Acid - 1 oz

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-04*