ALL ABOUT: Vitamina C.

Episodio 2: The Many Types Of Vitamin C.



In our mind, Vitamin C is a unique complex, perhaps even for partial information of manufacturers of cosmetics and pharmaceuticals, which for brevity (or marketing needs) make us perceive it as a.. A well-defined ingredient. In reality, there are different forms in which Vitamin C occurs in nature, and each of them has its own peculiarities when it comes to skin. In addition, Vitamin C becomes particularly virtuous when it is associated with specific elements, the so-called stabilizers. These avoids its rapid destabilization and its risk of generating irritation to the skin. Let’s look into these interesting ingredients and how to get the most out of them for a fantastic skin. Read ho to master using this skin glow-inducing product and make sure to visit to get the product of your dreams.

In this second episode of All About: dedicated to Vitamin C, we try to explore these very interesting ingredients and how to make the most of them for a fantastic skin. Learn how to become a pro in its use and find out the product of your dreams on

How Many Forms of Vitamin C Are available?

Last week we introduced Vitamin C and illustrated its beneficial qualities for the skin. You can read the article here. Today, we shad a light on the many forms of Vitamin C. In fact,  it is appropriate to know that there

are different forms of Vitamin C, and it is important to choose the right form. First, because they have varying levels of effectiveness and stability. Second, a form that is unsuitable for your skin can irritate it.

Pure Vitamin C is also known as Ascorbic Acid, also called L-ascorbic acid. The “L” refers to the chirality of the molecule. All Ascorbic Acid in skin care products is in the “L” chiral form. Manufacturers know to use the L chiral form, so the use of the L chiral form is assumed. You should see “ascorbic acid” denoted without the “L” on an ingredient list because designating the chirality on ingredient labels is prohibited. But sometimes the “L” is shown anyway.

L-ascorbic acid is the acidic form of Vitamin C, and it is water-soluble. Ascorbic Acid is the bioavailable form needed for collagen synthesis. All other forms of Vitamin C need to be converted to Ascorbic Acid inside cells. In fact, in skin care products, it is more common to see derivatives of Vitamin C, which are salts (water-soluble) or esters (oil-soluble) of Ascorbic Acid.

What is L-Ascorbic Acid (LAA)?
This is Vitamin C in its most pure form. There is the misguided assumption that ascorbic acid is the same as Vitamin C. In reality, ascorbic acid is an isolated nutrient that is part of Vitamin C but it is not the whole Vitamin C. So Vitamin C and ascorbic acid are not exactly the same thing.

Pro: LAA  is the most potent form of Vitamin C. It has the most research backing it to show effectiveness.
Cons:  It’s less stable than other forms and can cause skin irritations in high doses. In fact, when exposed to light and/or air, ascorbic acid not only becomes inactive, but it also oxides extremely fast to become dehydro ascorbic acid (DHAA), which further degrades to acids that are very irritating to the skin.
Tip: If you try it, and your skin is cool with it, then this is your best bet for results.
Best For: potency and results, normal or oily skin

What Is Magnesium Ascorbyl Phosphate?

Magnesium Ascorbyl Phosphate is a water-soluble derivative of Vitamin C.
Pro: It is more stable: it won’t degrade as quickly as other forms. It also causes less skin irritation, so this is the best form if you have sensitive or dry skin.
Best for dry or sensitive skin

What Is Ascorbyl Palmitate?

Ascorbyl Palmitate is a more stable form of Vitamin C and is commonly used in oil-based skincare formulas.
Pro: Its power move is fighting free radical damage to protect against signs of aging and repairing skin.
Cons: It’s not as potent as the other forms of Vitamin C.
Best for: Repairing free radical damage.

What Is Ascorbic Glucosamine?

Glucosamine is a water-soluble derivative of Vitamin C.
Pro: Glucosamine is often used for its antioxidant and skin-brightening properties,
Cons: Science is not sure of the actual effectiveness.
Best for: Fighting Hyperpigmentation.

What Is Tetrahexyldecyl Ascorbate? 

This is the newest member of the Vitamin C family.
Pro: It’s more stable than the other forms. Moreover  its fat-soluble construction makes it easier to penetrate even the deepest layers of the skin.
Best for: General skin treatment.

What Is Sodium Ascorbyl Phosphate?

A stable, water-soluble derivative, this form of Vitamin C.
Sodium Ascorbyl Phosphate is gentle on skin and converts to ascorbic acid after it’s absorbed. It effectively works for brightening skin and fights free radical damage with antioxidants. It is usually contained in moisturizers for its tender yet effective action.
Best for: Brightening and fighting free radical damage

How is Vitamin C Stabilized?

Despite this vitamin’s ability to produce firmer skin cells, prevent hyperpigmentation and defend against free radicals, Vitamin C oxidizes very quickly (especially when exposed to air), becoming unstable. Once it becomes unstable, it can no longer carry out its beauty benefits, in turn allowing free-radical damage.  But when Vitamin C is mixed with Hyaluronic Acid, Vitamin E, Ferulic Acid Vitamin C is actually made stable and the hydration and anti-age power is actually boosted. Let’s discover them together.

How Does Vitamin C Combines With Hyaluronic Acid?

As you will know from our Korean Beauty Guide, Hyaluronic Acid is an amazing hydrant and humectant that that collects onto moisture and bind it to the skin. In fact, Hyaluronic Acid improves the skin’s ability to hold hydration and infuse it into deep layers. This helps lessening fine lines and the signs of aging as it provides intense moisture.

How Does Vitamin C Combines With Vitamin E?

Vitamin C is its complementary role to Vitamin E, basically, it its essential companion. In fact, Vitamin E can neutralize only one free radical at a time. It becomes inactive after neutralizing a single radical. Vitamin C regenerates Vitamin E, by converting the inactive Vitamin E back into an active antioxidant form. This is why it is good to have both Vitamin C and Vitamin E combined in the same product, as they both fight free radicals and supporting skin’s lipid barrier for a youthful skin.

How Does Vitamin C Combines with  Ferulic Acid?

This is another antioxidant which helps boost and stabilize both Vitamins C and E. It also aids in fighting free radical damage to support collagen production.

Tips: Get the Most out Of Vitamin C-Products.

Start With a Lower Concentration.

See how skin reacts and adjusts to this level before moving up to the higher concentrations of 15-20%.

Do a Patch test.

Apply a small amount to the inside of the wrist or behind the ear, and wait 24-48 hours to make sure you don’t have a skin reaction.

Don’t Use L- Ascorbic Acid on Sensitive Skin.

if you have Dry or sensitive skin, skip the L-ascorbic acid and go with the Magnesium Ascorbyl Phosphate.

Look for a vitamin C serum with a lower pH level. 

This will help with better absorption as it will reach the deeper layers of your skin for max results.

Don’t use a Lower pH Serum if You Have Sensitive Skin. 

Low pH means higher acidity, which can irritate skin.

Featured Products.

Klairs Freshly Juiced Vitamin Drop.

Freshly Juiced Vitamin Drop is a miraculous serum created to rejuvenate the skin. It contains pure concentrated vitamin C extract and natural ingredients such as broccoli extract and centella Asiatica. Its innovative non-irritating multi-solution formula is designed to revitalize, maintain and transform the skin by reducing imperfections and significantly reducing acne scars. It also protects the skin from pigmentation and firms it, reducing visible fine lines. And as if that wasn’t enough, it rebalances the skin’s brightness levels.


Neogen Lemon Green Caviar Essence & Tox Tightening Pack Kit.

Illuminates dull skin by reducing pigmentation and tightening pores with this Vitamin C-rich essence from the Neogen Dermalogy line. Multi-layer pads help to exfoliate the skin manually while applying the essence. Lemon extract and niacinamide are excellent for combating premature ageing, fine lines and hyperpigmentation.

Neogen Lemon green Caviar essence & Tox Tightening Pack Kit

Frudia Citrus Brightening.

The citrus-based line of Frudia Citrus is extremely effective in giving radiant vitality to the skin. It contains 86% citrus extract, to make your skin as smooth as silk, flooding it with natural vitamins. Balances the skin tones, revitalizing it deeply. The Citrus line provides moisture, vitamins and radiance: all essential elements for healthy skin; but that’s not all. Do not underestimate a powerful lightening action, for a clear face from the beginning, among the many properties that will make you fall in love with this product.

frudia citrus Brightening serum

The line consists of a Brightening Toner, a Brightening Cream, a Brightening Serum and a foam detergent based on citrus extract.

The vitamin C contained in the product soothes and visibly brightens the skin. Mango seed oil revitalizes and provides an optimal level of hydration. For even colouring and a fresh feeling that lasts a whole day.

Frudia employs the revolutionary R VITA W™ technology, which consists of a pure fruit juice extraction performed at low temperature so as not to lose the nutrients and vitamins of the fruit, using the extracted juice as base water, without resorting to the addition of purified water. An example of this is Frudia Citrus Brightening Cream, a lightening cream with 61% citrus extract from JuJu island, which, due to its bright colour, recalls a delicious tangerine smoothie.

Neogen Bio Peel Gauze Peeling Lemon.

This is a disposable flake product for regular skin exfoliation. Lemon extract (rich source of Vitamin C) purifies, moisturizes and brightens dull skin.
Lemongrass contains Cytral, which nourishes, regenerates and strengthens the skin’s natural protective barrier and effectively removes dead skin, leaving a pleasant feeling of freshness.


Vitamin C is a precious ally for our skin, but we are really succumbing to know exactly which of the many types of Vitamin C that exist in nature, can make us shine? Today we can understand exactly which of the many forms of Vitamin C is right for us, and how to stabilize it to the maximum, with the help of Hyaluronic Acid, Vitamin E or Ferulic Acid. Now you just have to find the product of your dreams on