Shop
-
L-tryptophan — 1,000 mg
1,000 mg of L-tryptophan per serving. Tryptophan is an essential amino acid and precursor to serotonin, melatonin, and niacin, with metabolism influenced by competing amino acids.
$21.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tryptophan — 1,500 mg
1,500 mg of L-tryptophan per serving. Tryptophan is an essential amino acid and precursor to serotonin, melatonin, and niacin, with metabolism influenced by competing amino acids.
$26.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tryptophan — 500 mg
500 mg of L-tryptophan per serving. Tryptophan is an essential amino acid and precursor to serotonin, melatonin, and niacin, with metabolism influenced by competing amino acids.
$16.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tryptophan sleep formula — 1,000 mg tryptophan
Provides 1,000 mg tryptophan in a sleep formula; tryptophan is an essential amino acid and precursor to serotonin and melatonin, linking dietary intake with sleep-wake signaling.
$29.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tryptophan sleep formula — 1,500 mg tryptophan
Provides 1,500 mg tryptophan in a sleep formula; tryptophan is an essential amino acid and precursor to serotonin and melatonin, linking dietary intake with sleep-wake signaling.
$35.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tryptophan sleep formula — 500 mg tryptophan
Provides 500 mg tryptophan in a sleep formula; tryptophan is an essential amino acid and precursor to serotonin and melatonin, linking dietary intake with sleep-wake signaling.
$22.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tyrosine — 1,000 mg
1,000 mg of L-tyrosine per serving. Tyrosine is a precursor to dopamine, norepinephrine, epinephrine, and thyroid hormones and is also incorporated into proteins.
$25.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tyrosine — 500 mg
500 mg of L-tyrosine per serving. Tyrosine is a precursor to dopamine, norepinephrine, epinephrine, and thyroid hormones and is also incorporated into proteins.
$19.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-tyrosine — 750 mg
750 mg of L-tyrosine per serving. Tyrosine is a precursor to dopamine, norepinephrine, epinephrine, and thyroid hormones and is also incorporated into proteins.
$21.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-valine — 1,000 mg
1,000 mg of L-valine per serving. Valine is an essential branched-chain amino acid used in protein synthesis and can be metabolized by muscle during activity.
$33.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-valine — 2,000 mg
2,000 mg of L-valine per serving. Valine is an essential branched-chain amino acid used in protein synthesis and can be metabolized by muscle during activity.
$44.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded -
L-valine — 500 mg
500 mg of L-valine per serving. Valine is an essential branched-chain amino acid used in protein synthesis and can be metabolized by muscle during activity.
$26.99 USDUnverified catalog pricePackage or serving price basis not recordedSource and check date not recorded
