STK Skin

STK Skin

Screen victim's body and hair

What is STK Skin?

Following a rape, purpose of victim forensic examination is first of all to identify and treat injuries, but the objective is also to help the investigation by attempting to collect assaulter’s semen traces.

Unfortunately, due to poor available solutions to locate sperm stains, current protocol relies mainly on blind swabbing, hoping to collect assaulter’s semen.

In order to deal with this issue, AXO Science has developed STK Skin, a sprayable solution that allows to specifically detect semen on victim’s skin and hair. Non-toxic, reliable and specific, STK Skin is the essential solution for forensic experts.

STK SKIN STK SKIN STK SKIN STK SKIN

Our project was focused on the possibility of obtaining results from STK Skin device even in extreme conditions, such as high humidity levels: the results were surprising and we're eager to share these findings with first aid centers in the Piedmont area as soon as they become available

S. Cisana & M. Omedei, Regional anti-doping center; E. Alladio, University of Torino (Italy)

As a Forensic Nursing Program, STK Skin has been a huge benefit to our practice. It has given us an additional tool to visualize potential evidence not previously seen during the sexual assault kit collection.

Kailyn Laswell, Forensic Nursing Coordinator - Crisis Services of North Alabama (USA)

Available products

To be able to buy from our shop, please first register, or log-in if you already have an account.

STK Skin x 10

STK Skin for victim's body and hair

10 pouches of STK Skin

STK Skin is a presumptive test for the...

STK Skin x 2 SAMPLE

STK Skin for victim's body and hair

2 sample pouches of STK Skin

STK Skin is a presumptive test for...

Sprayer

Spray bottle to be used with STK Spray & STK Skin

Spray bottle to be used with STK Spray or STK Skin to...

Positive Control x 10

Positive Control x 10

Box of 10 Positive Control

Positive Control to be used with STK Lab, STK Spray...

UV Goggles

Transparent goggles with UV filter to be used when using UV light

Transparent UV goggle to protect your...

UV Light VILBER VL-6.L-EU

Gold standard UV lamp with STK solutions

At the end of every STK solutions protocols, during the revelation...

UV Light VILBER VL-6.L-US

Gold standard UV lamp with STK solutions

At the end of every STK solutions protocols, during the revelation...

Light UV 365 nm US

UV light for STK Lab and STK Skin solutions

Rechargeable battery-powered lamp ideal for field use.

...

Light UV 365 nm EU

UV light for STK Lab and STK Skin solutions

Rechargeable battery-powered lamp ideal for field use.

...

Starter Kit STK Skin US

Everything you need to start immediately using STK Skin:

-Case to protect and transport your gear

...

Starter Kit STK Skin EU

Everything you need to start immediately using STK Skin:

-Case to protect and transport your gear

...

How to use STK Skin?

Dilute 1 sachet of STK Skin in 100 ml (~3 US fl oz) of demineralized water
1

Dilute 1 sachet of STK Skin in 100 ml (~3 US fl oz) of demineralized water

Spray victim’s body at a distance of ~20 cm (~8 inches)
2

Spray victim’s body at a distance of ~20 cm (~8 inches)

Read results with a 365nm UV light with visible light filter: only semen stains will glow in a blue color
3

Read results with a 365nm UV light with visible light filter: only semen stains will glow in a blue color

Frequently Asked Questions

Is STK Skin toxic?

STK Skin is not toxic and can be sprayed on victim’s body and hair. Protect victim’s eyes and mucosa.

Is STK Skin damaging DNA?

No, STK Skin is not damaging DNA and is fully compatible with extraction techniques.

How long can I use the STK Skin solution once diluted in water?

24h, protect it from sunlight.

Can I use any sprayer?

You can use any sprayer that is doing a fine mist and avoid big drops of waters.

Can I use any UV light?

No, you have to use a 365nm UV light with visible light filter. No every 365nm UV light give great results, please use a positive control to validate your UV light. We can recommend some specific 365nm UV lamp if needed.

Documentation for download