---
product_id: 590415146
title: "Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane)"
brand: "underground bio labs"
price: "₨1990"
currency: SCR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sc/products/590415146-underground-bio-labs-panda-supps-skull-nootropic-pre-workout-403mg
store_origin: SC
region: Seychelles
---

# 403mg caffeine for explosive energy 8g L-Citrulline Malate for insane muscle pump 600mg Alpha GPC for tunnel vision focus Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane)

**Brand:** underground bio labs
**Price:** ₨1990
**Availability:** ✅ In Stock

## Summary

> 💥 Unlock your ultimate workout zone with SKULL – where focus meets fury!

## Quick Answers

- **What is this?** Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane) by underground bio labs
- **How much does it cost?** ₨1990 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/590415146-underground-bio-labs-panda-supps-skull-nootropic-pre-workout-403mg)

## Best For

- underground bio labs enthusiasts

## Why This Product

- Trusted underground bio labs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Laser-Sharp Focus:** 600mg Alpha GPC and 3g L-Tyrosine deliver tunnel vision concentration to crush distractions.
- • **Endurance to Outlast:** 50mg Senactiv and 50mg AstraGin improve stamina and nutrient absorption for longer, harder sessions.
- • **Unmatched Muscle Pump:** 8g L-Citrulline Malate and 1000mg Agmatine Sulfate maximize blood flow for insane pumps.
- • **Explosive Energy Boost:** 403mg caffeine from 3 sources powers your workout with sustained, jitter-free energy.
- • **Cognitive Edge & Mood Lift:** 500mg Lion’s Mane and 100mg CognatiQP enhance mental clarity while elevating your mood.

## Overview

Underground Bio Labs’ Panda Supps SKULL is a high-stimulant nootropic pre-workout featuring 403mg caffeine from three sources, 600mg Alpha GPC for tunnel vision focus, and 8g L-Citrulline Malate for muscle pumps. It combines cognitive enhancers like Lion’s Mane and CognatiQP with endurance boosters Senactiv and AstraGin, delivering sustained energy, mental sharpness, and unparalleled muscle performance in a delicious Lemon Blueberry Pineapple flavor.

## Description

PANDA SUPPS - SKULL Pre-Workout Behold SKULL, our all new High Stimulant Nootropic Pre-Workout the newest addition to our growing pre-workout lineup! Forged with utmost precision over an arduous span, this pre-workout transcends the boundaries of focus and nootropic pre-workouts, ascending to the realm of the extraordinary. SKULL combines pump, focus, tunnel vision, and endurance all in one pre-workout! A new chapter has been opened in the Panda Supps pre-workout lineup. SKULL Pre is a testament to the unyielding dedication of Panda Supps, forever etched in the hearts of those who seek unparalleled excellence. Skull pre-workout, with its powerful ingredients, promotes muscle endurance, helping you push through those intense training sessions with ease. Not only does it aid in energy production, giving you the sustainable fuel you need to power through your workouts, but most importantly, it supports focus and mental sharpness, allowing you to stay fully engaged and in the zone. Additionally, Skull pre-workout provides mood elevation, helping you feel motivated and ready to tackle your fitness goals. Its tunnel vision effect enables you to block out distractions and maintain unwavering concentration. What sets this pre-workout apart is its ability to reduce the perception of effort. With the added benefit of delivering amazing pumps, Skull pre-workout is undoubtedly destined to become your new favorite pre-workout supplement. Directions: SKULL should be consumed 20 minutes prior to any workout or exercise session. Depending on tolerance, start with 1/2 - 1 scoops and mix vigorously in 8 Oz of water until dissolved fully. Do NOT exceed 2 scoops.

## Features

- MENTAL PERFORMANCE: 500 MG Lion’s Mane COGNITION: 100 Mg CognatiQ
- PUMP: 1000 MG Agmatine Sulfate PUMP: 8G L-Citrulline Malate
- ENERGY: 403MG Caffeine (3 Different Sources) ABSORBTION: 50 MG AstraGin ENDURANCE: 50 MG Senactiv
- FOCUS: 3G L-Tyrosine TUNNEL VISION: 600 MG Alpha GPC

## Product Details

- **Brand:** Underground Bio Labs
- **Flavor:** Insane In The Membrane
- **Unit Count:** 14.81 Ounce
- **Item Form:** Powder
- **Item Weight:** 1.2 Pounds
- **Item dimensions L x W x H:** 3.5 x 3.5 x 6 inches
- **Product Benefits:** Energy Management
- **Age Range (Description):** Adult
- **Number of Items:** 1
- **Servings per Container:** 40

## Images

![Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane) - Image 1](https://m.media-amazon.com/images/I/81ZoFLKluyL._AC_UL320_.jpg)
![Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane) - Image 2](https://m.media-amazon.com/images/I/81ZoFLKluyL._AC_UL480_FMwebp_QL65_.jpg)
![Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane) - Image 3](https://m.media-amazon.com/images/I/81ZoFLKluyL._AC_UL640_FMwebp_QL65_.jpg)
![Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane) - Image 4](https://m.media-amazon.com/images/I/81ZoFLKluyL._AC_UL800_FMwebp_QL65_.jpg)
![Underground Bio Labs/Panda Supps Skull Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane) - Image 5](https://m.media-amazon.com/images/I/81ZoFLKluyL._AC_UL960_FMwebp_QL65_.jpg)

## Available Options

This product comes in different **Flavor** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My favorite daily!
*by I***C on July 1, 2025*

One of my favorite go to pre workouts! You don’t feel cracked but the energy keeps you going without a massive crash. I keep trying different pres but keep coming back to this as my daily.

### ⭐⭐⭐⭐⭐ Very good.
*by A***A on June 28, 2025*

I really loved the taste. I like it. When I go to the gym, I don't feel that itching that you normally get with all pre-workouts. I don't feel fatigue when I'm at the gym.

### ⭐ Not good
*by J***L on February 25, 2025*

Probably the worst tasting pre I've had so far. Doesn't work well for a pre workout either. Felt very little from it.

## Frequently Bought Together

- Underground Bio Labs/Panda Supps Skull:Nootropic Pre-Workout, 403mg Caffeine for Tunnel Vision Focus,Pump, Unparalled Energy (40 Scoops) (Lemon Blueberry Pineapple)(Insane in The Membrane)
- Underground Bio Labs™ Panda Supps: Rampage, Extreme Pre-Workout, High Stim, Maximum Pump, Focus, and Energy,(50 Servings) (Kiwi-Lychee-Pinapple Flavor AKA Goblin Juice)
- Underground Bio Labs Panda Supps Pump, Pre-Workout, No-Clump Formula w/10G L-Citrulline Malate, Alpha GPC, Lions Mane,CognatiQ™,VasoDrive-AP® 40 Scoops (Rainbow Dragonfruit)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-13*