After being unhooked or unhooking yourself, Off the Record activates for the next 60/70/80 seconds:

Prevents your Aura from being revealed to the Killer, if they attempt to read it.
Suppresses Grunts of Pain when injured.
Grants the Endurance Status Effect.
This effect is cancelled prematurely if you perform a Conspicuous Action.
Off the Record deactivates once the Exit Gates are powered.

When healing yourself or another Survivor, Grunts of Pain and all noises related to the Healing action are suppressed:

Failed Healing Skill Checks do not trigger a Loud Noise Notification and only apply a Regression penalty of 3/2/1 percent.

After being healed from or having recovered from the Dying State, Soul Guard grants you the Endurance Status Effect for the next 4/6/8 seconds.

Any damage taken that would put you into the Dying State will instead trigger the Deep Wound Status Effect, after which you have 20 seconds to Mend yourself.
Taking any damage while under the effect of Deep Wound or if its timer runs out will put you into the Dying State.
Soul Guard allows you to completely recover from the Dying State when you are affected by the Cursed Status Effect.
Soul Guard has a cool-down of 30 seconds.

You transform plants found around The Campfire into tinctures that slow down bleeding.
Increases your Healing speed by 30/40/50 percent.
Reduces the Healing efficiency of Med-Kits by -20 percent.

Unlocks potential in your Aura-reading ability:
The Auras of all other Survivors within 20/28/36 metres of your location are revealed to you.

Each time you are unhooked or unhook yourself, the Hook breaks and the Killer's Aura is revealed to you for 4/5/6 seconds.
A Hook broken by Breakdown takes 180 seconds to respawn.