What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Cyberpunk 2077

Toxicology Perk Effects and How to Unlock | Is Toxicology Worth It?

Add to Watchlist

This page is about the Toxicology Perk for Cyberpunk 2077. Learn about Toxicology's effects at each perk level, how to unlock Toxicology, and see if this perk is worth acquiring!

Toxicology Removed in Update 2.0

Cyberpunk 2077 - Update 2.0 Photo

The Toxicology perk has been removed as of Update 2.0. The 2.0 update featured a massive perks overhaul that removed, rebalanced, or completely changed every old perk from the 1.6 Edgerunners Update and Base Game.

2.0 Perks and Skill Tree Guide

Toxicology Overview

Toxicology
Perk Icon
Attribute Cool
Skill Tree Ninjutsu
Activation -
Unlocked At Level 20 in Ninjutsu Skill Tree

Toxicology Effects

Effects at Each Level

Level 1 Increases the duration of Poison applied to enemies by 5 seconds.
+0.2 sec. per Perk level.

Is Toxicology Worth It?

Upgrade Priority (Ranking) B Rank Icon
Reason This is highly dependent on skills that apply Poison immediately otherwise it would not be as effective.

Perk Tier List

Poison-Strengthening Skill

Toxicology, being the last skill in the Ninjutsu skill tree, only increases the time duration of Poison. While that in itself is useful, there are very few Poison-inducing attacks that makes this perk a lot less useful than most.

In order to maximize the effect of Toxicology, it is highly recommended that you partner it with the skills Dagger Dealer and Venomous Fangs. This will ensure all your knife attacks will deal Poison on your opponents. Combined with Toxicology, the poison effect will last longer.

Otherwise, you need to invest in crafting or finding weapons that have chances of inflicting Poison on your targets or a lot of Molodets Biohaz Grenade.

Cyberpunk 2077 Related Links

Skills-Attributes-Banner.png

List of Perks and Skill Tree Guide

All Cool Perks

Ninjutsu

Silent And Deadly Crouching Tiger Hidden Dragon
Dagger Dealer Leg Up Strike From The Shadows
Assassin Sniper Cutthroat
Aggressive Antitoxins Clean Work Stunning Blows
From The Shadows Ghost Looking Sharp
Venomous Fangs Rattlesnake Juggler
Hasty Retreat Restorative Shadows Critical Antidote
Corrosive Poison Cheat Death Jeepers Creepers
Toxicology

Cold Blood

Cold Blood Will to Survive Icy Veins
Frosty Synapses Critical Condition Rapid Bloodflow
Defensive Clotting Coldest Blood Frozen Precision
Blood Brawl Predator Quick Transfer
Cold and Calculating Bloodswell Coolagulant
Easy Out Pain Is An Illusion Immunity
Merciless

All Attributes and Perks

Attributes and Perk Skill Trees
Body Athletics Annihilation Street Brawler
Reflexes Assault Handguns Blades
Intelligence Breach Protocol Quickhacking
Technical Ability Engineering Crafting
Cool Ninjutsu Cold Blood

Attributes and Best Attributes to Choose

Author

    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey

    All rights reserved

    Guide Index