Decode Test Kits Instructions
Please view the instructions for your kit below. Some tests can be done immediately while others require preparation. Follow the instructions carefully to get the most accurate results.

DECODE.MYSKIN DNA
Test Kit Instructions
Please follow these steps to activate your kit and take your test:
-
REGISTER
- First register your test tube using the QR code on the box, or go to:
www.codextechlabs.com/RegisterKit
- First register your test tube using the QR code on the box, or go to:
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PREPARE
- Don’t eat/drink/brush teeth at least 20 minutes prior to collecting your sample.
- Separate the swab from its tube sleeve by twisting and pulling on both ends.
- Do not discard the tube sleeve and do not touch the swab tip with your hand.
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COLLECT
- Rinse your mouth with water first.
- Rub the swab tip vigorously on the entire inside of both cheeks of your mouth
(approximately 20 times on each side). - Insert the swab back into tube sleeve.
-
MAIL
- Place the sample tube into the plastic bag provided.
- Close and seal the bag.
- Place the sample bag back in the drawer.
- Place the drawer back in the mailing box and follow the instructions on the front.

DECODE.MYSKIN Hormone
Test Kit Instructions
Please follow these steps to activate your kit and take your test:
-
REGISTER
- First register your test tube using the QR code on the box, or go to:
www.codextechlabs.com/RegisterKit
- First register your test tube using the QR code on the box, or go to:
-
PREPARE
- Choose your collection day. Failure to follow instructions may compromise your lab results:
- Men, Children & Non-Menstruating Women: Collect any day of the month.
- Menstruating Women:
- Regular Cycles: Collect on day 19, 20 or 21 of the menstrual cycle. (Day 1 = first day of your period.)
- Irregular Cycles: If you know when your period will start, choose 5 days before.
- If you use hormones, please consult the Codex app or go to www.codextestlabs.com/salivatesthormones
- Avoid anti-aging/anti-wrinkle facial creams for 3 days prior to testing as they may contain undisclosed hormones.
- Do not eat, drink (except water) or brush teeth at least 2 hour prior to collections
- Choose your collection day: any day for men and non-menstruating days for women.
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COLLECT
- Keep spitting saliva into the collection tube until you collect a good sample.
- Note the criteria of a “good” saliva sample: Each saliva sample must fill the tube at least half-way, not including bubbles.
- If you make a mistake, you can rinse your tubes with hot water (no soap), shake out the remaining water, air dry, and reuse.
- Allow saliva to pool in your mouth. Collection usually takes 15 to 30 minutes depending on saliva flow. To help increase saliva flow, try smelling food, yawning, or pressing the tip of your tongue against your teeth.
- Transfer saliva to the tube. Repat above step for more saliva. When done, cap the tube.
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MAIL
- Place the sample tube into the plastic bag provided.
- Close and seal the bag.
- Place the sample bag back in the drawer.
- Place the drawer back in the mailing box and follow the instructions on the front.

DECODE.MYGUT Microbiome
Test Kit Instructions
Please follow these steps to activate your kit and take your test:
-
REGISTER
- First register your test tube using the QR code on the box, or go to:
www.codextechlabs.com/RegisterKit
- First register your test tube using the QR code on the box, or go to:
-
PREPARE
- Wait until you feel like you are going to have a bowel movement.
- Take the FecesCatcher out of the drawer. It is simple and hygienic and reduces the risk of contaminating the sample - as water, urine, detergents, and deodorants may affect the outcome of the sample analysis.
- Install the FecesCatcher on your toilet to catch your stool sample:
- Open the FecesCatcher carefully in the direction of arrows in the two left corners.
- Avoid that the FecesCatcher comes into contact with water.
- Paste the FecesCatcher on the back of the toilet seat, as shown in the second image of the package.
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COLLECT
- Collect your stool samples on the FecesCatcher:
- Position yourself on the toilet seat over the FecesCatcher.
- Deposit your stool sampls directly into the FecesCatcher.
- Before wiping, stand up to avoid contaminating the sample with water or toilet paper.
- Wash your hands thoroughly with soap and water.
- Add stool sample to the collection tube:
- Put on the plastic gloves.
- Unscrew the cap on the collection tube and place it standing up on a flat surface.
- Remove the coring brush from its bag.
- Use the coring brush to poke 10-12 different areas of the stool to get a representative sample.
- For each poke, rotate the coring brush back and forth 4-5 times to evenly distribute stool around the coring brush. Avoid keeping large clumps of stool on the brush.
- Pick up the collection tube and hold it steady in one hand. Slowly twist the coring brush into the lower part of the tube with a corkscrew motion. There will be some resistance, but push the brush all the way to the bottom of the tube.
- Hold the tube steady and move the coring brush up and down inside the tube about 10-15 times while keeping the coring brush in the liquid.
- Remove the coring brush and discard in the trash bag provided. Note: DO NOTE PLACE THE CORING BRUSH IN THE BIOHAZARD BAG).
- Tightly screw the cap back on the collection tube.
- Do not remove your gloves yet.
- Clean up the FecesCatcher:
- Loosen the FecesCatcher on both ends and squeeze the ends together.
- Drop the FecesCatcher in the toilet bowl and wait about one minute, until the paper is soft and can be easily flushed down the toilet.
- Flush the toilet.
- Remove your gloves and put them in the trash bag. Wash your hands thoroughly with soap and water.
- Place any remaining waste in the trash bag and put it in the regular waste.
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MAIL
- Place the sample tube into the plastic Biohazard bag provided.
- Close and seal the bag.
- Place the sample bag back in the drawer.
- Place the drawer back in the mailing box and follow the instructions on the front.