Vit C+ Crystals

Vit C+ Crystals

Where to buy


  • Potent vitamin C antioxidant

  • Brightens uneven skin tone

  • Promotes collagen and elastin, minimising fine lines and wrinkles

  • Stable powder formula will not oxidise


A potent vitamin C crystal powder fortified with pure L-ascorbic and kojic acid. This highly stable formula is the most effective for...

A potent vitamin C crystal powder fortified with pure L-ascorbic and kojic acid. This highly stable formula is the most effective form of vitamin C for advanced results. With powerful antioxidant, skin brightening and age-defying benefits, this is essential for radiant and more youthful-looking skin.

This product is exclusive to Synergie Practitioner clinics.

Synergie Skin's vitamin C suite includes the following formulations:

 Effica C (Ascorbyl tetraisopalmitate, moderate potency, low irritation profile). This is the recommended vitamin C product for new users and those with sensitive skin. 

 Pure-C Crystals (L-ascorbic acid, high potency, low irritation profile).

 Vit C+ Crystals (L-ascorbic acid, high potency, low irritation profile). This product is not available online and is exclusively prescribed by Synergie Practitioners.

Key Ingredients

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Pure L-ascorbic acid: A vital precursor to neocollagenesis. L-ascorbic acid promotes collagen and elastin production to reduce the appearance of fine lines and regenerate ageing skin. It is a potent antioxidant and offers superior skin brightening.

Kojic acid: A natural mushroom-derived antioxidant and antimicrobial agent. Kojic acid reduces the appearance of hyperpigmentation from a cellular level by inhibiting the tyrosinase enzyme, which stimulates melanin production.

A note from Terri

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L-Ascorbic acid is a key ingredient for fighting ageing and damaging free radicals, promoting collagen production and treating hyperpigmentation. It acts on the melanin pathway by converting O-Dopaquinone back to Dopa. This reduces formation of oxidised melanin and inhibits tyrosinase required for melanin production.

Full Ingredient List

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Ascorbic Acid, Kojic Acid.

As part of our commitment to innovation, Synergie formulations are updated from time to time. Always refer to the ingredient list on the box for the most current version.


Using the spatula provided, simply dispense 1 heaped scoop of Vit C+ powder into the palm of your hand and dissolve with 4 drops of water.

Alternatively, mix with your recommended Synergie serums for targeted results:

SuperSerum+ (anti-ageing) 

HydroGel (oily skin)                                                        

Exfol-X (dull, sun-damaged skin) 

VaNish (pigmentation concerns)

Do not combine with retinol or niacinamide serums. If you have a known sensitivity to acidic products, introduce Vit C+ slowly over 3 weeks to allow the skin to acclimatise.

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