In short
- Targeted products are single ingredients such as amino acids, CoQ10 or alpha-lipoic acid, sold for a specific purpose.
- Because each is concentrated, read the amount per serving and the warnings carefully.
- Several of these ingredients can interact with medicines; ask a pharmacist.
- A brand's "purpose" language is marketing; the Supplement Facts panel is the information.
The Targeted Support section of the shop gathers single-ingredient products that people usually buy with one goal in mind: amino acids such as L-arginine and BCAAs, antioxidant compounds such as CoQ10 and alpha-lipoic acid, joint-related ingredients such as chondroitin and MSM, sleep products, krill oil, collagen and others. This guide describes what these groups of products are, how they are typically labeled, and what questions to ask before you pick one.
Amino acids
Amino acids are the building blocks of protein. Your body uses twenty of them, and some are labeled "essential" because we must get them from food. Supplements offer individual amino acids or small groups in capsule, tablet or powder form.
- BCAAs are branched-chain amino acids: leucine, isoleucine and valine. They are usually sold as a powder or capsules, often in a stated ratio such as 2:1:1.
- L-arginine and L-lysine are individual amino acids. The "L-" prefix describes the form that occurs in nature.
- 5-HTP is a compound the body produces from the amino acid tryptophan. Products that act on the brain's serotonin pathway are commonly flagged for possible interactions with antidepressants, so ask a pharmacist before combining them.
- Acetyl-L-carnitine and creatine are amino-acid-related compounds; creatine monohydrate is the most commonly sold form and is measured in grams.
Labels for amino acids can be confusing because amounts are in milligrams or grams per serving, and the serving is often several capsules. Check how many capsules make a serving before comparing two bottles.
Antioxidant-type ingredients
Antioxidants are substances that neutralize reactive molecules called free radicals in lab settings. In supplement form the term covers very different compounds.
- CoQ10 (coenzyme Q10) is made in the body and found in food. It is sold in two forms, ubiquinone and ubiquinol. It is fat-soluble, so labels commonly suggest taking it with a meal containing some fat, and it is mostly sold as softgels. CoQ10 may interact with some medicines, including blood thinners.
- Alpha-lipoic acid (ALA) is made in the body and also sold as R-ALA, a specific form. It can affect blood sugar levels, so anyone taking medicine for blood sugar should talk to a clinician before using it.
- Flavonoids are plant compounds, including those from fruits, tea and herbs. They are typically sold as extracts with a stated standardization.
Joint-related ingredients
Chondroitin, MSM (methylsulfonylmethane) and collagen are all sold in this area. Their sources matter to some buyers: chondroitin is usually derived from animal cartilage (bovine, porcine or marine sources), and collagen from bovine, marine or poultry sources. If you have a shellfish allergy, or avoid specific animal products, check the label for the source, as products often combine ingredients such as chondroitin and glucosamine, and glucosamine is commonly shellfish-derived.
Oils: krill and others
Krill oil comes from small crustaceans. It is sold in softgels and, because krill are crustaceans, people with shellfish allergies need to read the "Contains" statement. Oils are sensitive to heat and light, and some should be refrigerated after opening. See Storing supplements.
Sleep products
Sleep supplements vary widely. Some contain melatonin, some contain herbs such as valerian, and others combine several ingredients. Amounts are not comparable from one product to the next, so look at the exact ingredient and the amount per serving. A few general cautions apply to this kind of product:
- They can cause drowsiness, so do not drive or use machinery after taking one unless you know how it affects you.
- Tell your clinician if you take other sedating products or medicines.
- Keep them out of children's reach; they can look like sweets, especially gummy forms.
How to choose between two similar products
- Identify the exact ingredient and form. "CoQ10" can be ubiquinone or ubiquinol; "ALA" can be racemic or R-form.
- Compare the amount per serving, then the servings per bottle.
- Read "other ingredients". Concentrated products still need a capsule, and the shell and fillers vary.
- Check the warnings. More concentrated ingredients tend to have more specific warnings.
- Look for evidence of testing. Independent seals, where present, are on the label. Their absence is not a verdict.
How the shop is organized
Everything in Targeted Support is grouped by ingredient, so you can go straight to the one you are looking for: CoQ10, Alpha Lipoic Acid, Sleep Supplements, L-Arginine, Krill Oils and more.
Product pages in the shop show what the manufacturer and our suppliers provide, including wording that brands use in their own product names. We do not add claims of our own, and this guide does not say that any ingredient treats or prevents a condition.