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Significantly increasing lean muscle mass as part of a diligent resistance-training program [ 12 ].

However, remember that this product contains caffeine and may cause restlessness if taken within 5 hours of bedtime.

What is the Difference Between Transparent Labs BULK, LEAN, and STIM-FREE Pre-Workouts?

Each serving contains approximately 162 mg of caffeine from organic green coffee beans (180 mg at 90% caffeine).

If so, you've come to the right spot!

Why Doesn't LEAN Pre-Workout Contain Creatine?

This product is also certified by Informed Choice to meet the highest standards for athletes and consumers.

I Don't Live in the United States, Can I Still Buy PreSeries LEAN?

Its functions in the body are suggested to be complementary to those of caffeine, acting as a phosphodiesterase inhibitor and central nervous system stimulant [ 28 ].

Caffeine may also enhance endurance and strength by increasing fatty acid oxidation and sparing muscle glycogen [ 24 ].

Carnosine is an endogenous dipeptide that functions as a buffer in muscle cells, thereby attenuating the accumulation of acidic byproducts of muscular exertion (e.g.

Key Features Clinically Dosed Pre-Workout for Lean Mass Retention and Fat Loss: Transparent Labs LEAN Pre-Workout is an evidence-based pre-workout that enhances athletic performance while supporting fat loss.

L-theanine is highly bioavailable when taken orally and actively traverses the blood-brain barrier to enhance mental acuity and attenuate stress [ 25 , 26 ].

How to Use For Beginners to Pre-Workout Supplements To assess tolerance, mix 1/2 scoop of Transparent Labs Lean Pre-Workout with 6 to 8 oz of water and consume 20-30 minutes before exercising, preferably on an empty stomach.

Provides an Immediate Energy Boost with Natural Caffeine: Leave even the most intense workouts in the dust with clean nootropics like PurCaf® caffeine, theobromine, acetyl-L-carnitine, and choline bitartrate.

For Experienced Pre-Workout Supplement Users Mix 1 full scoop of Transparent Labs Lean Pre-Workout with 10 to 12 oz of water and consume 20-30 minutes before exercising, preferably on an empty stomach.

Flavor
White Cherry
Size
30 Servings
Shipping and returns

Orders are usually prepared within 24–48 business hours after confirmation. Weekends and public holidays are excluded; business hours are counted during normal operating days, not continuously. Estimated transit after dispatch is 4–7 business days. Preparation and transit are separate periods. Carrier delays, remote locations and exceptional conditions can extend estimates; delivery dates are not guaranteed.

Our voluntary return window is 30 calendar days after delivery for eligible unused items. Contact us before sending a return. Product-specific exclusions must be disclosed before purchase; mandatory consumer rights remain unaffected.

Shipping Information · Returns & Refunds

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