SKINCARE | TIRTIR 5 Actives Power Serums Kit | Cosmetic Proof

Each bottle is 10mL which I found to be more than enough to use each serum for at least two weeks and is also a fantastic way of trying all five serums. I honestly had a great time using this set as I see my skin as having its moody days and some days you don’t need an acid, but something soothing instead. I like being able to mix up my serums depending on how my skin is feeling and thankfully my skin does not freak out when I do this!

Azelaic Acid 12% Serum*

The texture of this serum is quite watery so it will run down your hands if you are not quick! While I don’t often opt for azelaic acid, I have found it to be a gentle, daily exfoliating option. 

Pure Vitamin C24 Serum*

This Pure Vitamin C24 Serum has 24% pure vitamin C which is meant to improve skin elasticity, lighten blemishes and increase collagen production. As the percentage of vitamin C, directions say to use just once a day which I do anyway with vitamin C as I tend to get red in the cheeks if I use it twice a day. 

I have been using this every day in the morning for 2 weeks and my skin has been looking fantastic! The texture is that slightly sticky, dry oil kind of texture that more concentrated vitamin C serums tend to be. While the texture is not my favourite, once I apply moisturizer and sunscreen, the feeling no longer exists.

PHA 15% Serum*

This PHA 15% Serum contains both PHA and LHA which act to gently exfoliate and refine skin texture while keeping the skin’s pH at 5.5 and hydrated with phyto-mucin (vegan alternative to snail mucin). This is a great exfoliant for anyone with sensitive or flaky skin.

This also has a watery texture, but makes it so great for layering with other serums and/or sheet masks! This one is definitely one of my favourites at maintaining an even skin texture and I would definitely get the full size once I am done!

SOS Serum

This SOS Serum is a jelly-like drink of water for the skin that absorbs instantly to plump and fill in fine lines resulting from dryness. It also contains soothing ingredients like chamomile and cucumber extracts. The hero ingredient is polyglutamic acid which is known to hold more moisture than hyaluronic acid!

The texture for this one is somewhere in between the watery PHA 15% and the thick Niacinamide 20%. It’s soothing and absorb quickly into the skin with no sticky residue and can be used with another serum if you prefer! I tend to use this if I am using a sheet mask afterwards!

This Niacinamide 20% Serum is a little sticky, but for a 20% concentration, my skin did not get irritated at all. The texture is on the thicker side so product does get stick in the dropper which is a bit annoying. This is when I feel like a pump is a better option for this texture, but a lot of brands tend to favour these droppers.

I did feel like I had a bit of an extra glow in my skin while I was using this and this is another serum that I would like to get the full size of once I am finished with my other niacinamide serums as I have already finished this sample size!

Final verdict: This was such a fun way to try these serums and there was easily two weeks of product in each bottle! I definitely walked away with some favourites, but honestly all of these serums were really pleasant to use and ones that had fantastically effective ingredients for an equally fantastic price (~$37)! This was one of those times where I wonder WHY I even pay so much for skincare elsewhere when I can get all these good ingredients through Kbeauty!