What is the shelf life of this once it's opened? Thanks!
1050824
H2O2 is very stable. I do keep mine refrigerated but it should be good for months.
1050825
Mine stayed potent for several months after I'd opened it - I kept it in the fridge and it was as good the last day as it was the first
1050826
I'm not sure bc I have only had mine for a few weeks. I do know that it is good for a very long time AS LONG as you keep it stored in a cool dry dark place.
1050827
How I handle this product is this. I open it. I keep it in the refrigerator. It is Peroxide. Like the 3% we buy for cuts it can be used for months until it is gone. Because of how I use the 35% internally I store this one in my refrigerator. The first bottle lasted me, with total potency in tact, for 2 years. It takes a long time to go through this bottle so just store it in the fridge use it until it is gone. I put the dropper bottle full. I don't open the big refill bottle until I need to refill the dropper bottle. Sorry that is a bit long winded. The shelf life on this, as long is capped and is not allowed to evaporate, is very long. For me it lasted 2 years before I had to replace the bottle. How I handle this product is this. I open it. I keep it in the refrigerator. It is Peroxide. Like the 3% we buy for cuts it can be used for months until it is gone. Because of how I use the 35% internally I store this one in my refrigerator. The first bottle lasted me, with total potency in tact, for 2 years. It takes a long time to go through this bottle so just store it in the fridge use it until it is gone. I put the dropper bottle full. I don't open the big refill bottle until I need to refill the dropper bottle. Sorry that is a bit long winded. The shelf life on this, as long is capped... » Read More How I handle this product is this. I open it. I keep it in the refrigerator. It is Peroxide. Like the 3% we buy for cuts it can be used for months until it is gone. Because of how I use the 35% internally I store this one in my refrigerator. The first bottle lasted me, with total potency in tact, for 2 years. It takes a long time to go through this bottle so just store it in the fridge use it until it is gone. I put the dropper bottle full. I don't open the big refill bottle until I need to refill the dropper bottle. Sorry that is a bit long winded. The shelf life on this, as long is capped and is not allowed to evaporate, is very long. For me it lasted 2 years before I had to replace the bottle. « Show Less
539626
4 Years is the shelf life. It is unaffected by opening it and using some. If it takes you 4 years to use this product, you clearly do not go outside enough. Some people use it as a back up and I would suggest using it in that last year and replacing it.
377556
Not real sure about shelf life. Might want to check on-line for more information.
894072
It seems to be about 18 months. Seitenbacher recommends keeping it refrigerated after opening. Never had a problem: it's eaten well before that.
487023
We use it right away, so we don't know the shelf life. It works, but sometimes needs to be reapplied.
296811
I always refrigerate mine. Not sure what the shelf life is, as it doesn't last that long in our home.
1713406
I store mine in the freezer... I really don't know how much shelf life it has... I tend to use it up quickly...
2006810
It has been packed with an oxygen absorber so it should have at least a five year shelf life if unopened. After opening it should have 9 months to a year.
658258
The can itself does not say how long its good for once it's open. Opened, the can has a shelf life of 6 to 12 months depending on how well you store it. It does not require refrigeration in powder form.
947029
Hello, it has a 5 year shelf life from the date stamped on the bottle. Hope that helps! Awesome product I am a repeat customer for it.
701617
After opening I would still expect a good life on it 3-6 months if stored really good. But you can refrigerate it or seal it tight but like many things examine it the second time-
804146
Refrigerated after opening in a sealed bag. It should last until you use it up.......
1549224
Like the other poster said, my bottle was in the fridge for at least a year before I started using it, and I had already opened it. It was fine. So long as you keep it refrigerated it will last a very long time. I am guessing the acidity level and the fact that it is concentrated, is what helps keep this fresh.
267849
Yes, I believe it is recommended to keep it in the fridge after opening. Frankly I didn't like the product so whatever purpose you did buy I hope it will be serving you. Good luck. Wish you the best.
2274795
Not sure of shelf life but my unit remains functional. Unit is worth every penny for the kids and me
1360519
I am uncertain of the shelf life. We used one and did not open the other for at least two weeks and it was still fresh.
177052
It should be stored in the refrigerator or freezer. Not sure about the shelf life.