The Serum Quartet includes our signature serums. The set provides a great opportunity to try out very different products to see which will work best for you:

Antioxidant Serum (0.5 fl oz) - Complete antioxidant protection. Includes our exclusive Glutaredoxin. For everyone, especially those living in a city.

Collagen Serum (1 fl oz) - Our unique serum that builds and maintains collagen. Use at any age and for anything, anytime, including help with scar repair.

DMAE Serum (1 fl oz) - Tightening and nutrition. This is a serum to use short term, to help create tighter skin. It was called initially "class reunion" serum.

ELS Serum (1 fl oz) - Intense moisturization for dry or cracked skin,  providing lipidic nutrients and improving the skin barrier.

The Serum Quartet is priced 25% below the cost of the serums if purchased separately.

See individual product descriptions.

See individual product descriptions.

Product rating

Customer Reviews

• Author: Adam
  Hi. First up - let me say I am a 36year-old Australian guy. Secondly - this stuff - all of it - is amazing. I am very analytical and highly curious, so having spent hours, if not days, researching active ingredients for anti-aging (after too many big nights) I find that skin actives provides them at bargain prices.
  
  So - the serums. The most amazing is CHAS serum. Seriously - try put a few drops on damaged skin. A cut, pimple, abrasion - oh - maybe even your face - and its almost like watching it heal. From a metabolic perspective, the Anti-O are removing toxic byproducts occurring during oxidation (cell fuel process). Honest to goodness a pulled splinter from my hand today - made a mess of it with a blunt pin, so dropped some of this serum on the wound a few hours ago. Its almost gone.
  
  The DMAE is an odd one. It seems to pull and tighten, like putting wood glue on ones face, but the strange thing is, its starts to become permanent. I don't know how it works, but it does, which is scary, because with all these products, I am starting to get younger : ) note: I am testing all of them!
  
  The collagen serum is also odd - its not as nice on the skin as the others (just use a bit of anti-aging cream after - best at night) - but again - my face seems to be - puffier? hahaha I know that sounds silly - and in some ways the effect aint exactly grand (a looked slightly balloon headish at the gym this morning), but after some exercise - my whole head was glowing.
  
  The lipid oil is lovely - skin food - but I only use on the body - hands, feet, arms - but it needs a barrier cream to stop its dispersion to the environment (sorbolene or the dream cream I got in the mail yesterday).
  
  Every product is fantastic - especially the hair KGF stuff. I use this in combination with monoxidil (for hair loss) and people are telling me how thick my hair is! The hair stuff is scalp food as well. Beautiful product.
  
  The eye-cream and the anti-aging cream a wonderful as well - but I think everyone already knew that. Just want to write this silly long review because I am really grateful that skinactives are willing to offer such beautiful products at wonderful price.
• Author: Christine
  as a product junkie for nearly 40 years, started at 13, I cant believe how good these products are! I have to be carefull with the ELS serum as I used too much & had a little break out. DMAE is my favorite, rich, creamy & feels great. the antioxidant works well round my smokers lips & lets make collagen on the decolletage mainly. 10 out of 10 for quality & value which I've never given on any other products. well done.