Reddit mentions of Just Add Water JAW1795 Jaws Spit Antifog Gel, 1-Ounce

https://www.amazon.com/Jaws-Spit-Antifog-Gel-1-Ounce/dp/B000GGCLIC/ref=pd_sim_468_1?_encoding=UTF8&pd_rd_i=B000GGCLIC&pd_rd_r=V1QE4FS7CRCD57040N9D&pd_rd_w=X8V8L&pd_rd_wg=CmPCg&psc=1&refRID=V1QE4FS7CRCD57040N9D

Jaws JAW1795 Quick Spit Antifog Gel, 1-Ounce https://www.amazon.ca/dp/B000GGCLIC/ref=cm_sw_r_cp_apa_i_kY2TCb27R91WY

I use this stuff man works like a charm .

I use an antifog solution on my glasses.

After a year+ of foggy lenses I finally bought this diving mask “Spit” stuff from Amazon, put a BB sized drop on one lens and used a lens cleaning cloth to divide it between both lenses and haven’t had any fog now in two weeks playing 2 hour sessions of Beat Saber.

Just Add Water JAW1795 Jaws Spit Antifog Gel, 1-Ounce

https://www.amazon.com/dp/B000GGCLIC/

I use this stuff. It's what my LDS sells and it's always worked perfectly for me.

I would reiterate what /u/kushnsammy said though, make sure you've really prepped the mask in the first place. I found that 10-20 minutes of scrubbing really hard with a whitening (i.e. abrasive) toothpaste does the trick.

I use this with no issues at all.