Vitamin C: what's it and how does it benefit your skin?

As one of the most successful skincare concepts in today's market, "Using vitamin c in the morning, retinol at night" is still the "leader" in the minds of many consumers. How much more do you know about it? Let's take a look at the following questions.

1. Why is the "Using vitamin c in the morning, retinol at night" skincare concept becoming a trend?

Under normal healthy conditions, human skin has different regulatory functions during the day and night, and many physiological indicators are cyclical, that is, the "biological clock", which divides the skin's regulatory state according to the time of day: self-efficient resistance during the day; self-repair and regeneration at night. Based on the theory of circadian regulation, the ingredient party has introduced a high efficacy skin care with the morning C and evening A (i.e. PR theory Protect - Recover.)

2. Why use vitamin c in the morning?

The most important role of VC - antioxidant - is to release its ability to sacrifice itself during the day to neutralize the damage to the skin caused by oxygen radicals generated by UV rays.

3. Why do we need to use retinol at night?

The main effects of VA are - anti-aging, comprehensive anti-aging targets; repairing photoaging damage, promoting cell metabolism, promoting the production of elastin and collagen, and effectively enhancing the repair ability of the skin. However, VA has some photosensitivity, so it is more suitable for use at night or avoiding light.

Vitamin C, a naturally occurring antioxidant, is synthesized by most higher plants and animals and can be obtained from outside sources. Currently common vitamin C: ascorbic acid, ascorbyl palmitate, ascorbyl tetraisopalmitate, magnesium ascorbyl phosphate, sodium ascorbyl phosphate, and magnesium ascorbyl phosphate belong to vitamin C and its derivatives.

L-ascorbic acid is the most abundant antioxidant in the body, supplying electrons, neutralizing free radicals, and protecting intracellular structures from oxidative stress.

First of all, the antioxidant here is not antioxygen. When the human body is free from external stimuli, the body functions normally cellular metabolism consumes oxygen.

When external stimuli are received, such as ultraviolet light, haze, and chemical pollution, the skin produces superoxide anions, peroxides, and singlet oxygen, and these oxygen radicals are the objects of VC action.

If the production of oxygen free radicals exceeds the consumption of cellular metabolism, the structure of skin and subcutaneous cells is damaged by free radicals, which eventually leads to premature apoptosis, collagen degeneration, aging and degeneration, as well as more melanin production.

The most intuitive feeling is that the skin loses elasticity, develops fine lines and deep wrinkles, becomes dull in color, and develops spots.

I. Classification of ascorbic acid and its derivatives.

1. Ascorbic acid (L-VC)

Prototype VC got a lot of papers for efficacy verification, but there are some insurmountable disadvantages: low pH is not friendly to sensitive skin, photosensitive and easy to discolor; there are some uncontrollable factors in both discoloration of the solution and solubility of the powder, which also becomes the pain point of the product.

2.3-o-ethyl ascorbic acid (VCE)

A more stable and mild VC derivative, which is loved by many big manufacturers, but due to the high price, it only appears as a supporting role of whitening raw materials.

3. Ascorbyl tetraisopalmitate (VCIP)

It is a fat-soluble ingredient with a better affinity to the skin and more efficient absorption.

4. Ascorbic acid glucoside (AA2G)

Mostly used in essence products, with more stable and reliable performance.

5. Ascorbyl Palmitate (APPS)

Hydrophilic and lipophilic performance and mild, good skin-friendly effect.

II. So how to choose VC ingredients in daily life

Mild and low concentration options: ascorbyl palmitate, ascorbyl glucoside.

Skin resurfacing potent: ascorbic acid, ascorbyl tetraisopalmitate.

For use with: 3-o-ethyl ascorbic acid, which works better as a skin-lightening ingredient with

NEUTRIHERBS VITAMIN C CREAM product is rendered in orange with a VC hue and a creamy, skin-friendly, non-sticky texture, formulated with.

1. 3-O-ETHYL ASCORBIC ACID, ASCORBIC ACID POLYPEPTIDE, TOCOPHEROL: dual VC synergistic VE with antioxidants.

2. niacinamide, glutathione, and arbutin as whitening agents to even out skin tone.

3. sodium hyaluronate, aloe vera extract, as a moisturizer.

As shown in the picture: consumers use products containing 1% VC for 2 months, skin tone is significantly brightened.

III. Three major effects of VC: antioxidant, whitening, anti-aging

1. Antioxidant, anti-inflammatory

Reduces free radical production and reduces redness when skin is damaged by UV rays. Research shows that the vitamin can down-regulate the inflammatory mediators in human keratinocytes induced by ultraviolet rays by up to 70%, while ferulic acid + VE can effectively improve

2. Whitening

Achieve the effect through antioxidant and tyrosinase inhibition, reducing melanin production while providing a degree of protection.

3. Promote collagen production and improve skin elasticity

Combines lysine hydroxylase and proline hydroxylase, two important constituent molecules of collagen, to promote collagen production.