Short story:

Yung Toyota Long Life (Red, concentrate) and nabili ko pero Super Long Life (Pink, 50/50 premix) ang nasa manual.
Hindi ko kasi alam na magkaiba pa pala yung dalawa.

Did some google research and mejo conflicting ang opinions.
Toyota red long life & pink super long life same? - Bob Is The Oil Guy
Long Life vs Super Long Life coolant | Tacoma World

I am not a chemist but someone can shed some light.

Red - has sodium benzoate
Pink - plus sebacic acid

Toyota both are compatible/mixable.
Toyota red long life & pink super long life same? - Bob Is The Oil Guy

So the question is is it safe to use Long Life (Red) after flushing the Pink coolant? Thanks!