Melbourne Facial Beauty
Vitamin C

Vitamin C skin care

There is no doubt that Vitamin C is one of the most effective and affordable antioxidants found in skin care products today.

So how can Vitamin C turn itself along with the whole preparation from super antioxidant to super free radical factory?

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Why have vitamin C in topical skin care?

According to the International Journal of Pharmaceutics, vitamin C has many favourable aspects for the skin, including:

• antioxidant properties (neutralizes free radicals);
• suppressing pigmentation of the skin (by inhibiting the enzyme tyrosinase);
• decomposing melanin enhancing whitening effects
• stimulating collagen production and hence increasing skin firmness and filling fine lines;
• enhancing sunscreen protection by prevent UVA and UVB induced damage

But Vitamin C has many forms. Some of them are stable and others not so. It is important for you to know what you're putting on your skin.

Forms of vitamin C in skin care products

L-ascorbic acid is the most common form of vitamin C used in skin care. It is water-soluble. The advantage to L-ascorbic acid is that its concentrations are well-established in skin care products. Unfortunately L-ascorbic acid changes upon exposure to light, heat, or air.

For this reason, numerous substitutes to L-ascorbic acid are used in skin care Eg Ascorbyl palmitate , Sodium ascorbyl palmitate, Magnesium ascorbyl palmitate, Ascorbyl glucosamine etc And most recent one is tetrahexadecyl ascorbate (THD ascorbate) which has up to four times the potency of L-ascorbic acid.

A study published in the Journal of Cellular Biochemistry in March 2009 illustrates that THD Ascorbate:

• Is extremely stable even at high temperature for one month
• Readily permeates cells & is converted to intracellular pure Ascorbic Acid
• Greatly enhances collagen synthesis
• Reduces free radicals, inhibits MMPs & prevents damage to DNA, cell membrane lipids, collagen & elastin , as well as saccharides IN THE PRESENCE OF UV RADIATION

Other factors that effect Vitamin C's effectiveness are:

• Product packaging. It is ideal to have a dark glass container with a very small opening. Larger opening allow more air in, which oxidizes the product.And see through packaging allows light to come in contact with the product.
• Vitamin C delivery system. You can find Vitamin C in creams, liquids, serums and powders. Serum is believed to be the most effective.
• Percentage used. Products in grocery stores will most likely have a much smaller % of Vitamin C than professional brands. Companies are not required to disclose ingredient %, but high-potency Vitamin C will cost more.

What’s the advantage to using vitamin C and vitamin E together?

Vitamin C and vitamin E are network antioxidants that have been found to synergistically enhance the power of one another. Vitamins C and E as L-ascorbic acid and tocopheryl acetate to prevent the formation of carcinogenic nitrosamines. Vitamin C and vitamin E have also been shown to enhance the photoprotective effects of sunscreen, as vitamin C has been reported to enhance UVA protection, whereas vitamin E is more effective against UVB radiation.

Lastly, vitamin C has also been found to decrease hyperpigmentation, Study in the International Journal of Dermatology, found that combination therapy of vitamin C, vitamin E, and 10% glycolic acid was effective in treating signs of hyperpigmentation.

MEDIK8 C-TETRA and CE-TETRA

The most stable, reliable, potent Vit C we've seen on the market today. Highest absorption rate due to molecular weigh and penetration level. Truly, the most magnificent product which produces results literally overnight.

Medik8 C-Tetra Benefits:

• Protects skin against oxidative stress the main cause of photo-ageing
• Complements sunscreen creams. Once applied, CE-Tetra® absorbs immediately and cannot be washed off
• Adds a luminous glow to the skin, evens out skin tone and leaves it supple, bright and well hydrated
• Protects against free-radicals, the high energy particles which damage collagen, the skin’s natural scaffolding
• Helps stimulate collagen and elastin synthesis, causing the skin to tighten and erasing minor lines and wrinkles
• Alleviates skin inflammation and UV-induced erythema (sunburn)
• Actively fights against hyperpigmentation and post-acne blemishes
• Increases physical resistance to capillary damage and thereby has a benefits to redness-prone skin • Improves the lipid barrier of the skin and stimulates the production of ceramides
• Formula is non-acne aggravating and non-comedogenic (does not clog the pores

C-Tetra contains 3% tetrahexyldecyl ascorbate and vitamin E, and is designed for men and women in their mid-20s to 40s.

Whereas CE-Tetra is a stronger formulation containing 7% of the ingredient, for those aged 40 onwards. This equates to 12% and 28% in conventional Vitamin C preparations.

Directions to use C-Tetra:

C-Tetra & CE-Tetra has been formulated for direct application to the face. In the morning, after cleansing, apply 3-4 drops directly to the skin and blend evenly across the whole facial area, neck and décolleté. Alternatively, place a drop on your finger and massage into the skin. Leave to absorb for 2-3 minutes. Follow with the application of Hydr8 SPF25 or your preferred SPF hydrator/sunscreen.

Medik8 C-Tetra Ingredients:

Simmondsia Chinensis Oil, Tetrahexyldecyl Ascorbate, Cyclopentasiloxane, Cyclohexasiloxane, PPG-12/SMDI Copolymer, Tocopherol (d-Alpha)