Vitamin C in skin care - how to avoid skin damage

September 30, 2016



You may already know that Vitamin C is one of the key ingredients of great skin. But did you know that not all Vitamin C is created equal?

Vitamin C's powerful capacities

Studies show that Vitamin C:

  • sparks collagen production,  promoting the smooth, firm appearance of young, healthy skin
  • reduces melanin production, making your skin brighter
  • has powerful anti-oxidant capacities, protecting your skin from damaging free-radicals that increase premature aging
  • Increases the effectiveness of your sunscreen
  • boosts your natural UV defenses

But Vitamin C comes in different forms, and it’s important to know which one is right to put on your skin when for maximum benefits and to avoid skin damage.

Oxidized Ascorbic Acid can cause skin damage!

The most natural form of Vitamin C is ascorbic acid—a highly unstable form of Vitamin C that has a very short usable life. That’s why you have to drink orange juice within a week if you don’t want it to spoil.

If you’ve ever wondered why some skin products with Vitamin C can turn your skin orange, it’s probably because they’ve been on the shelf too long. Ascorbic acid turns orange-brown when it goes bad. And it can cause skin damage.

We’re big fans of ascorbic acid in orange juice, but we don’t use it in our products.

We put three different kinds of high-quality modern cosmetic Vitamin C into the TUALIQUE skin care line, harnessing the power and benefits of this powerful anti-oxidant in a longer-lasting form.

Water-soluble stable Vitamin C

Two are water-soluble, very stable, effective, and safe forms of Vitamin C :

  • Magnesium Ascorbyl Phosphate
  • Aminopropyl Ascorbyl Phosphate

Magnesium Ascorbyl Phosphate increases your skin elasticity and hydration levels. Aminopropyl Ascorbyl Phosphate was shown to offer anti-oxidant effects 

Oil-soluble Vitamin C

The third is a safe, oil-soluble Vitamin C that plumps your skin with moisture and improves your skin tone: Tetrahexyldecyl Ascorbate.

Oil-soluble Vitamin C, which—although highly effective—may lead to skin damage if exposed to sunlight. A study with Ascorbyl Palmitate (a less effective oil soluble Vitamin C and often found in make-up and skin care products) shows that it can cause skin damage when used during the day. We recommend using oil-soluble Vitamin C only at night.

Vitamin C in our products:

Aminopropyl Ascorbyl Phosphate and Magnesium Ascorbyl Phosphate

The Youth Recovery Serum contains Aminopropyl Ascorbyl Phosphate and Magnesium Ascorbyl Phosphate which are carried by a liposomal delivery system that enhances stability and effectiveness. Youth Recovery Serum

This serum is a powerful anti-aging transformer for all skin types that keeps your skin vibrant from morning to night.

Magnesium Ascorbyl Phosphate

The Vitamin C Radiance Serum contains Magnesium Ascorbyl Phosphate.

The Vitamin C Radiance Serum is an intensive treatment that strengthens the natural protective barrier of stressed skin.

This unique protection complex supports your skin in the fight against aging and structural damage, while increasing resilience.

Tetrahexyldecyl Ascorbate

The Night Time Face Oil contains Tetrahexyldecyl Ascorbate.

Night Time Oleo GelThis nourishing face oil triggers cell repair and regeneration and restores your skin’s youthful plumpness with Vitamin C and carefully selected botanical extracts.

Day Time Face Oil

Day Time Oleo GelIf you want to invigorate dry skin and provide extra moisture loss protection during daylight hours, we recommend Day Time Face Oil.

This rich, regenerative protective face oil does not contain oil-soluble Vitamin C, which—although highly effective—may lead to skin damage if exposed to sunlight.

So now you know. Use the right Vitamin C at the right time. And if you don’t want to look like a carrot, ascorbic acid might go better in your stomach than on your face!



Vitamin C and Skin

Vitamin C derivative ascorbyl palmitate promotes ultraviolet-B-induced lipid peroxidation and cytotoxicity in keratinocytes

Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photo damage

In vitro antioxidant activity and in vivo efficacy of topical formulations containing vitamin C and its derivatives studied by non-invasive methods.

Non-Sunscreen Photo-Protection: Antioxidants Add Value to a Sunscreen

In vitro antioxidant activity and in vivo efficacy of topical formulations containing vitamin C and its derivatives studied by non-invasive methods.

Products of oxidized L-ascorbic acid damage acellular DNA.



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