Research-Based

AminoLean Pre-Workout Review – Is This RSP Supplement Worth It?

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By Meghan Stoops, RDN

Reviewed by Juliana Tamayo, MS, RDN - Last Updated

AminoLean Pre-Workout Review

Sometimes it’s challenging to find motivation for your workout. Maybe you’re struggling to get out the door, or you made it to the gym only to lose momentum upon arrival. Whatever your obstacle, pre-workout supplements like RSP AminoLean were designed to address exactly this issue. But do they truly deliver results, or could you achieve the same effect for less by simply drinking coffee before your gym session? Let’s explore. 

About AminoLean Pre-Workout

RSP Nutrition is a supplement brand focused on creating clean, innovative nutritional products for active individuals, busy professionals, and fitness enthusiasts. According to its website, RSP emphasizes products that are convenient, effective, straightforward, and formulated with only clean, proven ingredients.

RSP Nutrition’s AminoLean pre-workout supplement claims to enhance energy levels and exercise performance when taken 20-30 minutes before training. It also promises improved focus, weight management support, and accelerated muscle recovery. AminoLean delivers 125mg of caffeine from green tea and green coffee plus L-Carnitine, available in numerous flavors including pink lemonade, fruit punch, blackberry pom, berry elixir, grape, watermelon, blue raspberry, cherry on top, and summer rocket pop.

AminoLean Pre-Workout

AminoLean Pre-Workout Benefits

According to RSP Nutrition’s website, AminoLean pre-workout delivers energy without compromise. The supplement’s claimed benefits include boosting natural energy without jitters or crashes, accelerating post-exercise recovery, and promoting natural weight management to support a lean physique.

AminoLean Pre-Workout Benefits

AminoLean Pre-Workout Ingredients

RSP AminoLean pre-workout features three primary ingredient complexes: an amino acid blend, a weight management blend, and an energy and focus blend.

AminoLean Pre-Workout Supplement Facts

Amino Acid Blend

RSP AminoLean pre-workout contains a proprietary amino acid blend including Taurine, CarnoSyn Beta-Alanine, L-Glutamine, L-Arginine, L-Leucine, L-Citrulline, L-Isoleucine, L-Valine, L-Tyrosine, L-Histidine HCL, L-Lysine HCL, L-Phenylalanine, L-Threonine, and L-Methionine.

Extensive research supports amino acid supplementation for post-workout recovery. Since amino acids serve as protein’s building blocks—essential for building and repairing muscle tissue during and after exercise—consuming them before or after training can accelerate recovery.

Research indicates that branched-chain amino acids (BCAAs)—isoleucine, leucine, and valine—may reduce post-exercise muscle soreness while promoting muscle growth. Leucine specifically activates muscle-protein synthesis, the process of creating new muscle tissue.

Weight Management Blend

AminoLean pre-workout features a proprietary weight management blend containing L-Carnitine L-Tartrate, INNOBIO (supplying 60% Conjugated Linoleic Acid), Green Tea Extract, and Green Coffee Extract.

Several ingredients in this blend show promise for weight management, though more research remains needed. L-Carnitine, for instance, may promote weight loss by transporting fatty acids into cells for energy conversion. While numerous studies support these potential benefits, L-Carnitine’s long-term weight loss effects remain unclear. 

Green tea extract appears frequently in weight loss supplements due to its potential metabolism-boosting and fat-burning properties. This effect partially stems from caffeine content, also present in green coffee extract. Caffeine stimulates exercise performance and metabolic rate; however, most studies haven’t found this leads to substantial weight loss and likely works best alongside dietary and lifestyle modifications.

Energy and Focus Blend

RSP AminoLean pre-workout contains a proprietary energy and focus blend featuring InnovaTea® Natural Caffeine 98% from Tea (Camellia sinensis) and Theobromine. Both caffeine and theobromine are natural stimulants that boost energy levels. While caffeine occurs in coffee, tea, and chocolate, theobromine is found in cocoa. Theobromine may provide anti-anxiety effects that enhance energy without jitters, though additional research is needed to confirm these effects.

Does AminoLean Pre-Workout Work?

Based on AminoLean Pre-Workout’s ingredient profile and available research, many consumers will likely experience benefits from this product, particularly for muscle development, performance, and recovery. However, individual results will vary as with any supplement.

Who is AminoLean Pre-Workout Best For?

This product suits active individuals seeking to enhance their workout routine. Those who are pregnant, planning pregnancy, or breastfeeding should avoid this supplement. 

Caffeine-sensitive individuals should also steer clear of this product. Always consult your doctor or healthcare provider before adding any supplement to your regimen, especially if you take medications for chronic conditions.

AminoLean Pre-Workout Drink

Claims vs. Reality

RSP Nutrition claims their AminoLean pre-workout boosts natural energy without jitters or crashes, delivers faster post-exercise recovery, and promotes natural weight management for lean physique support.

While AminoLean contains numerous ingredients supporting these claims, it uses proprietary blends that don’t disclose exact ingredient amounts. This makes assessing whether ingredients are present in effective doses difficult. Consequently, we cannot definitively determine this product’s efficacy based solely on proprietary blend dosages.

Is AminoLean Pre-Workout Safe?

Most ingredients in this product are safe and don’t cause significant adverse effects when used per package instructions. However, certain ingredients may trigger side effects in some individuals. Caffeine-sensitive people should avoid this product. Excessive caffeine or theobromine intake can cause nausea, headaches, appetite loss, digestive upset, and excessive sweating. 

Where to Buy AminoLean Pre-Workout

You can purchase RSP AminoLean pre-workout directly from rspnutrition.com.

AminoLean Pre-Workout Website

RSP offers a 30-serving container for $32.99 or a 70-serving container for $54.99. You can subscribe to their website and save an additional 15%. This product is also available at select online retailers including Amazon.com for $28.99 and Vitaminshoppe.com for $32.99.

Overall Rating:
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Meghan Stoops, RDN

Meghan Stoops is a Registered Dietitian and licensed Nutritionist with a bachelor’s in Dietetics from San Diego State University. Meghan developed an interest in dietetics early on through her own personal struggles with nutrition misinformation. She began doing her own research, which sparked her passion for nutrition and it’s impact on our physical and mental health. Today, she takes take a non-diet, all-foods-fit approach to nutrition, and is devoted to teaching others that eating healthy does not mean restriction or sacrifice.

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