All Vitamin C face serums are not created equal. That’s a fact. Topical Vitamin C comes in many forms and some can actually do more harm to your skin than good. So what’s the difference from one Vitamin C Serum formulation to the next?

Vitamin C Compared

The key types of Vitamin C and its derivatives that are found in Vitamin C Serums are:

• L-Ascorbic Acid.

Calcium Ascorbate/Ester C

Ascorbyl Palmitate

Magnesium Ascorbyl Palmitate

Sodium Ascorbyl Phosphate

But which variant of Vitamin C is best?

L-ascorbic acid

For many years, L-ascorbic acid was the Vitamin C skincare ingredient of choice. It does, however, have many disadvantages.

Firstly, it is very unstable (we’ve all had exes like that) - it oxidises quickly and its potency rapidly decreases.

That’s why it’s always packaged in dark glass and, once opened, it begins to deteriorate. In fact, once it’s oxidised, if applied to the skin, it can create more damaging free radicals and acidic by-products than any potential benefits it imparts.

L-ascorbic acid also needs to operate at a low PH level for maximum effectiveness, putting skin out of its’ natural equilibrium. This can cause damage to the natural PH level of the skin, and create side effects of its own. For optimal PH levels with minimal damage, using L-ascorbic acid means tailoring your entire skin care routine around it.

This takes unnecessary time for little perceived benefit. Something we’re not particularly found of here at Mend HQ.

The Others

Calcium Ascorbate/Ester C is a less ideal Vitamin C derivative for our skin. Its chemical compound structure makes it potentially pro-oxidative, meaning that unless it is paired with the correct companion ingredients, much like oxidised L-ascorbic acid, it has the potential to do more harm than good.

Ascorbyl palmitate does not have the same PH issues as L-ascorbic acid. It works well when dispersed in an oil base and is more stable than L-ascorbic acid.

Its big brother, Magnesium Ascorbyl Palmitate, operates in a virtually identical way, but with the added benefit of magnesium. They are both good, solid choices when it comes to Vitamin C skincare.

Mend Vitamin C Serum

For Mend Vitamin C Serum, after carefully researching, testing and refining all the available options, we eventually settled on sodium ascorbyl phosphate.

Not only is it a more stable version of Vitamin C, capable of penetrating the dermis of the skin, it can actively change the way our skin behaves at a cellular level.

Sodium ascorbyl phosphate also has amazing acne-fighting characteristics, thanks to its antimicrobial properties and sebum oxidisation abilities. Sebum is the oil that sits inside our pores and on our skin (if we are oily), and the oxidisation process, when it is exposed to the air, is what causes blackheads and pimples.

Not that Mend Vitamin C Serum isn’t also great for spot-free skin. It’s sebum-regulating abilities play a part in managing fine lines and wrinkles, as well as helping to regulate the synthesis of collagen, delivering a more healthy, brighter-looking complexion.

Our Vitamin C Serum also helps to fight free radical damage and acts as a barrier to environmental pollution.

Finally, like most Vitamin C derivatives, sodium ascorbyl phosphate does something rather special when it comes to protecting the skin from sun damage. 

Not only does it act as a natural blocker of UV rays, thanks to its antioxidant qualities, but it also helps to make sunscreen more effective, when used in tandem.

Pretty cool, right?

In fact, all things considered, we believe that sodium ascorbyl phosphate is something of a miracle worker in modern skincare, which is exactly why we chose to use it in our own Vitamin C Serum.

So why not give it a try here today? We’re sure you’ll agree just how awesome this product is too.