The 20% vitamin C serum for brighter, firmer-looking skin
GeneXC Serum is iS Clinical’s most advanced vitamin C serum. It’s built around 20% L-ascorbic acid, the most researched form of vitamin C, in a stabilised, time-released formula. Kakadu plum, one of nature’s richest sources of vitamin C, adds more brightening and antioxidant power.
What sets it apart is what sits alongside the vitamin C. iS Clinical’s Extremozymes come from organisms that survive extreme environments, and they help protect and repair skin under stress. Superoxide dismutase adds antioxidant defence, and gentle fruit acids smooth the surface so everything absorbs better. The result is skin that looks brighter, more even and firmer, with softer fine lines.
It’s a lightweight serum that suits all skin types, including sensitive and overtreated skin, and works just as well for men as women.
Who it’s for:
Dull, tired or uneven skin tone
Early signs of ageing: fine lines, loss of firmness
Thin, damaged or sun-damaged skin
Over-exfoliated or overtreated skin that needs support
Anyone who wants a daily antioxidant step under their sunscreen
Normal, dry, oily, combination and sensitive skin
Common questions
How do I use it? In the morning after cleansing, apply 3-4 drops to your palm, then dab and smooth over face and neck. Let it absorb, then follow with moisturiser if needed and always finish with sunscreen. Vitamin C and SPF work best together.
Why does it fizz when I open it? That’s normal. Vitamin C serums can build up pressure during shipping. Open the cap a quarter turn, wait about 30 seconds, then keep opening a quarter turn at a time. It doesn’t affect how well it works. Store it at room temperature, out of direct sunlight.
Is it suitable for sensitive skin? Yes, iS Clinical recommends it for sensitive skin. It’s a strong vitamin C, so some people feel a light tingle at first. If that bothers you, start every second morning and build up.
GeneXC Serum or GeneXC Firming Eye Gel? They’re partners. The serum is for your whole face and neck, and the Firming Eye Gel is made for the delicate eye area, with a cooling applicator for puffiness and dark circles.
“I chose GeneXC Serum because vitamin C is one of the few skincare ingredients with real science behind it for brightness and firmness, and this is the most advanced version I’ve seen. It’s the morning step I’d want everyone to have under their sunscreen.” - Caroline, Lucēre
APPLICATION: Apply 3-4 drops to clean skin in the morning, dabbing and smoothing over face and neck. Follow with moisturiser if needed and SPF.
Free shipping on NZ orders over $150. Authorised iS Clinical stockist.
The 20% vitamin C serum for brighter, firmer-looking skin
GeneXC Serum is iS Clinical’s most advanced vitamin C serum. It’s built around 20% L-ascorbic acid, the most researched form of vitamin C, in a stabilised, time-released formula. Kakadu plum, one of nature’s richest sources of vitamin C, adds more brightening and antioxidant power.
What sets it apart is what sits alongside the vitamin C. iS Clinical’s Extremozymes come from organisms that survive extreme environments, and they help protect and repair skin under stress. Superoxide dismutase adds antioxidant defence, and gentle fruit acids smooth the surface so everything absorbs better. The result is skin that looks brighter, more even and firmer, with softer fine lines.
It’s a lightweight serum that suits all skin types, including sensitive and overtreated skin, and works just as well for men as women.
Who it’s for:
Dull, tired or uneven skin tone
Early signs of ageing: fine lines, loss of firmness
Thin, damaged or sun-damaged skin
Over-exfoliated or overtreated skin that needs support
Anyone who wants a daily antioxidant step under their sunscreen
Normal, dry, oily, combination and sensitive skin
Common questions
How do I use it? In the morning after cleansing, apply 3-4 drops to your palm, then dab and smooth over face and neck. Let it absorb, then follow with moisturiser if needed and always finish with sunscreen. Vitamin C and SPF work best together.
Why does it fizz when I open it? That’s normal. Vitamin C serums can build up pressure during shipping. Open the cap a quarter turn, wait about 30 seconds, then keep opening a quarter turn at a time. It doesn’t affect how well it works. Store it at room temperature, out of direct sunlight.
Is it suitable for sensitive skin? Yes, iS Clinical recommends it for sensitive skin. It’s a strong vitamin C, so some people feel a light tingle at first. If that bothers you, start every second morning and build up.
GeneXC Serum or GeneXC Firming Eye Gel? They’re partners. The serum is for your whole face and neck, and the Firming Eye Gel is made for the delicate eye area, with a cooling applicator for puffiness and dark circles.
“I chose GeneXC Serum because vitamin C is one of the few skincare ingredients with real science behind it for brightness and firmness, and this is the most advanced version I’ve seen. It’s the morning step I’d want everyone to have under their sunscreen.” - Caroline, Lucēre
APPLICATION: Apply 3-4 drops to clean skin in the morning, dabbing and smoothing over face and neck. Follow with moisturiser if needed and SPF.
Free shipping on NZ orders over $150. Authorised iS Clinical stockist.
