Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Acetyl-L-Carnitine and L-Arginine are two amino acid derivatives commonly used in supplements aimed at supporting muscle health and performance. L-Arginine is a precursor to nitric oxide, a molecule that promotes vasodilation and improved blood flow, which may enhance nutrient delivery to muscles during exercise. Several clinical studies have shown that L-Arginine supplementation can improve exercise performance and muscle recovery, although results are mixed and benefits are often modest, particularly in well-trained athletes.

Acetyl-L-Carnitine is involved in the transport of fatty acids into mitochondria for energy production. Some studies suggest that Acetyl-L-Carnitine supplementation may reduce muscle damage and soreness after exercise, possibly due to its antioxidant properties and its role in cellular energy metabolism. However, the evidence for significant improvements in muscle strength or mass is limited, with many studies showing only minor or no direct effects in healthy adults.

Overall, there is scientific rationale and moderate evidence for the use of both ingredients in supporting muscle metabolism, exercise recovery, and possibly performance, though neither is a miracle supplement. The combination is commonly found in performance-oriented products, and while benefits exist, they are not universally robust or transformative according to current research.

More about Acetyl-L-Carnitine-L-Arginine
More about Muscles

Other ingredients that support Muscles

Acetyl L-carnitine
adenosine 5-triphosphate disodium (ATP)
alpha-ketoglutarate (AKG)
amino acids
amylopectin
ashwagandha
astaxanthin
beet
beta-alanine
bovine
bovine liver
branched-chain amino acids
bromelain
caffeine
calcium
cherry
chloride
coenzyme Q10 (CoQ10)
colostrum
conjugated linoleic acid (CLA)
cordyceps
creatine monohydrate
turmeric
d-alpha tocopherol
devil's claw
dong quai root
fish protein
forskohlii root
l-isoleucine
iron
kale
L-alanine
L-Alanyl-L-glutamine
L-arginine
l-carnitine
L-carnosine
L-citrulline
L-glutamine
L-glycine
L-leucine
L-Ornithine
L-proline
L-taurine
L-threonine
L-valine
magnesium
malic acid
maltodextrin
maltose
methylsulfonylmethane (MSM)
milk
nicotinamide riboside
ornithine alpha-ketoglutarate
Peppermint
phosphorus
phytocannabinoids
potassium
protein
quinoa
rhizome
sardines
black ginger
soybean
specialized pro-resolving mediators (SPMs)
spinach
spirulina
tongkat ali
ubiquinol
Urolithin A
vitamin B
vitamin C
vitamin D
vitamin D3
water
watermelon
whey protein
white willow
β-nicotinamide mononucleotide (NMN)
suma
squawvine
sodium salt
solomon's seal
siler root
eucommia
electrolytes blend (proprietary)
guelder rose
polyphenols
trace minerals
wintergreen
camphor oil
menthol oil
wheat germ
wood betony
herbal blend (proprietary)
Algae
chickpea protein
brown rice protein
AMP-activated protein kinase (AMPK)
arnica
2a, 17a-dimethyl-17b-hydroxy-5a-androstan-3-one
Arginine Alpha Ketoglutarate
Animal Tissue
Antler
Arginine Creatine
Arginine nitrate
Arachidonic Acid
Arginine malate
Arginine aspartate
Avocado
Anserina
Alpha-ketoisocaproic acid
Acetylcholine
Adenosine triphosphate (ATP)
Algal protein
Alpha hydroxyisocaproic acid
Arginine alpha-ketoisocaproate
Arginine silicate
Animal protein
Blue Cohosh
Biopeptide
Beta-hydroxybutyrate
Bicarbonate
Beef Protein
Black galingale
Beef
Beef liver
Bovine Protein
Black Gram
Black willow
Ba Ji Tian
Bee products
banana
BCAA
Chia seed
Casein
Cardarine
Chinese Mountain Ant
Carnosine
Citrate malate
Cyathula
Curcuminoid
Cramp Bark
Chuchuhuasi
Cyanotis Vaga
Coca
Coconut Water
Cetylated Fatty Acids
Creatine
Chicken
Curcuma
C-Phycocyanin
Cyanotis arachnoides
DL-Methionine
Deer Velvet
Date
D-Ribose
Dextrose
Dimethyl sulfoxide (DMSO)
Dipsacus
Dipeptide
epicatechin
Epistane
Egg
Erythrina
Elk antler
Eurycoma Longifolia
Emu Oil
Ecdysteroids
Elthyl-Alpha-Guanido-Methyl-Ethanoate
Ecdysterone
Essential Oil Blend
Egg protein
Fish
Fatty acids
fibroblast growth factor
Guanidinoacetic acid
Ginsenosides
Glutamine
Growth factors
GMS-ribose
glucose
Glycocyamine
Glycerol
Glycine
Guanidinopropionic Acid (GPA )
Hydroxymethylbutyrate
Haematococcus pluvialis
HMB Hydroxymethylbutyrate
Hairy Arnica
Isomaltulose
Iporuru
Isoleucine
icariin
Ketosterones
Legume protein
Lentil
Lavandin
Lentein
leucine alpha-ketoglutarate
Lactalbumin
Lipids
Mineral Blend
Maral Root
Maslinic Acid
Mineral ascorbate
Marjoram
Marine Protein
Milk Protein
Methylxanthine
NADH
Ornithine
Phosphocreatine
Puerain
Phytoecdysteroid
Plankton
Propionyl-L-Carnitine
Proteolytic Enzymes
Phosphate Salt
Pyruvate
Phosphatidic Acid
Pea
Potash
Peptides
Qin Jiao
Quinoa Protein
Rue
Rhaponticum
Ribose
Shellfish
Salmon Oil
Safed musli
salt
Soy Protein
Sida cordifolia
Shilajit
Terpenoids
Tripeptide
Taxillus Sutchuenensis
Turkesterone
Trichopus zeylanicus
Taurine
Tynanthus panurensis
Tribulus Terrestris
Ursolic Acid
Vegetable Protein
Viburnum
Withanolides

Other body systems supported by Acetyl-L-Carnitine-L-Arginine

Arteries
Blood
Brain
Circulatory System
Heart
Mitochondria
Muscles
Nerves
Reproductive System
Specific Neurotransmitters
Sympathetic Nervous System

Products containing Acetyl-L-Carnitine-L-Arginine

We currently have no products on Vitabase that contain this ingredient.