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Klean Athlete

Klean Antioxidant by Klean Athlete

90 capsules · 30-day supply
Powerful Antioxidant Blend for Enhanced Cellular Protection and Vitality
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Gluten Free

Klean Athlete Klean Antioxidant overview

If hard training leaves you wiped for days, this pairing fits. Acetyl L-carnitine and alpha lipoic acid are most useful for endurance and high-volume athletes, adults with low mental energy, and people whose fasting glucose or A1c (average blood sugar over ~3 months) sits higher than they’d like. Vegetarians and older adults, who often have lower carnitine stores and mitochondrial efficiency, are common responders. If you want deep triglyceride reduction or big shifts in hs-CRP (an inflammation marker), this isn’t the direct tool.

Acetyl L-carnitine shuttles fatty acids into mitochondria (your cell power plants) to be burned for energy, and it also supports acetylcholine (a neurotransmitter tied to attention). Alpha lipoic acid is a rare antioxidant that works in both water and fat environments and helps regenerate glutathione (the liver’s main detox antioxidant). Together they improve cellular energy and redox balance, which is why some see steadier endurance and clearer focus within 1–2 weeks, with glucose and nerve comfort changes typically in 4–8 weeks. Astaxanthin quenches singlet oxygen from intense exercise, while maqui berry anthocyanins and vitamin C recycle other antioxidants; biotin supports enzymes that process carbs and fats.

Take the three-capsule daily dose with a meal, as alpha lipoic acid can cause nausea on an empty stomach. Morning or early afternoon suits most, since acetyl L-carnitine can feel stimulating. If you also take mineral supplements (iron, magnesium, zinc), separate by 2–4 hours because lipoic acid can bind minerals. Keep your usual labs on schedule: recheck fasting glucose, A1c, and, if relevant, liver enzymes like ALT after 8–12 weeks.

If you use insulin or diabetes medications, monitor for lower glucose and discuss dose adjustments with your clinician. Take thyroid hormone (levothyroxine) at a different time of day, as carnitine can blunt hormone entry into cells; hypothyroid patients should keep dosing consistent and separated. Biotin can interfere with some lab immunoassays, so pause it for 48–72 hours before thyroid or troponin testing. During active chemotherapy or radiation, don’t add antioxidants without oncology guidance. Pregnancy and breastfeeding: safety data are limited, so avoid unless your clinician advises otherwise.

Frequently asked questions

How long does acetyl L-carnitine and alpha lipoic acid take to work?

Energy and mental clarity often change within 1–2 weeks. For exercise recovery, nerve comfort, or glucose benefits, give it 4–8 weeks, then reassess labs like fasting glucose or A1c after 8–12 weeks.

Does alpha lipoic acid lower blood sugar?

Yes, modestly in many people. It can improve insulin sensitivity, so if you take insulin or oral diabetes drugs, watch for lows and work with your clinician on dose adjustments.

Should I take this with or without food?

With food. Alpha lipoic acid can cause nausea on an empty stomach, and a meal improves tolerance. If you also take iron, magnesium, or zinc, separate those by 2–4 hours.

Will acetyl L-carnitine keep me up at night?

It can feel stimulating in some people. Take it in the morning or early afternoon. If sleep is sensitive, avoid dosing late in the day.

Is astaxanthin safe if I’m allergic to shellfish?

Yes. Astaxanthin here is sourced from microalgae, not shellfish. The allergy issue is shellfish protein, not the carotenoid itself.

Can I take this with CoQ10 or creatine?

Yes. They work through different energy pathways and are commonly combined for training and fatigue. Introduce one at a time so you can gauge effects and tolerance.

Does biotin in this product mess up lab tests?

Biotin can interfere with some lab assays, especially thyroid and troponin tests. The dose here is modest, but to be safe, stop biotin 48–72 hours before those blood draws.

Is alpha lipoic acid better as R-ALA?

R-ALA is the natural isomer and is more bioactive per milligram, but both forms have clinical data. The 400 mg here (racemic ALA) is within studied ranges for metabolic and nerve benefits.

How to take it & ingredients

Suggested use: Adults take three vegetarian capsules daily with a meal or as directed by a health professional.
Active ingredients
3 capsules per serving · 30 servings
Vitamin C
Ascorbic Acid
125 mg
Biotin
300 mcg
Acetyl L Carnitine HCl
1000 mg
Alpha Lipoic Acid
400 mg
Maqui Berry
Aristotelia chilensis extract
100 mg
Astaxanthin
2 mg
Other ingredients: Hydroxypropyl methylcellulose, Cellulose, Calcium carbonate, Vegetable stearate, Silica