Clean Longevity Supplements for Strength, Sleep and Healthy Aging
Grass-fed whey, Creapure® creatine, glycine, marine collagen and magnesium. Founded by nutritionist Viktoria Krestina.
Third-Party Tested Supplements, Made in the USA
EVERY BATCH TESTED FOR HEAVY METALS
SELECTED FROM THE WORLD’S FINEST SOURCES
ONLY INGREDIENTS WITH A PURPOSE
PREMIUM, RESEARCH-BACKED INGREDIENTS
CRAFTED WITH CARE. WITHOUT COMPROMISE.
IN FDA-REGISTERED FACILITIES
Grass-Fed Whey Protein Isolate
Fuel your body with the cleanest, certified grass-fed whey protein. This is not just a single-ingredient protein, this is the best ingredient protein. Our patented ice cold cross flow micro-filtration system removes virtually all fat, carbs, and lactose, delivering a non-bloating, easily digestible protein that’s beyond clean.
Marine Collagen Peptides for Skin, Hair and Joints
Rejuvenate skin, hair, and joints with marine collagen sourced from wild-caught North Atlantic fish. Fast-absorbing and odorless, this clean source of types I-IV collagen supports youthfulness from the inside out with no additives or fillers.
Glycine Powder for Sleep and Recovery
Glycine plays a key role in everything from brain function to muscle growth and sleep. Though considered “non-essential,” it’s truly essential for fueling your body with everything it needs to perform at its best.
Creapure® Creatine Monohydrate Powder
Our Creatine is made from Creapure®, the highest quality pure creatine monohydrate from AlzChem Trostberg GmbH in Germany. Designed to help your body reach its full potential by boosting strength, energy, and recovery for maximum performance.
Gentle Herbal Laxative with Cascara and Aloe
Smooth Moves combines Cascara Sagrada and Aloe Ferox to support regularity, soothe the digestive tract, and promote overall gut balance. Crafted from natural botanicals, it provides gentle, effective relief from occasional constipation, without the harsh side effects of synthetic laxatives.
Magnesium Glycinate + L-Threonate Complex
Our Advanced Magnesium Complex combines Magtein® and TRAACS® for mind, body, and recovery. Formulated with Magtein® to support healthy brain magnesium levels and cognitive health,* it also supports deeper sleep and calm recovery while promoting bone, heart, and nervous system health, without additives or fillers.
Melatonin-Free Sleep Supplement with L-Theanine and GABA
Our pioneering Sleep & Mood Superior Formula promotes deep, restorative sleep without melatonin. This groundbreaking formula calms your mind, enhances REM sleep, and improves mood naturally, helping you feel fully recharged and ready to take on the day.
Fuel your health with purity
At Centenarius Nutrition, we prioritize safety and purity above all else. Every supplement we create is formulated with the cleanest, most effective ingredients, rigorously tested to ensure they meet the highest standards. From protein powders to collagen, our products are crafted to support your health and longevity. Because you deserve the best.
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Frequently Asked Questions About Our Supplements
Quick answers on choosing and combining our supplements. For orders, shipping and lab testing, see the FAQ on our About page.
What are the best supplements for longevity?
What are the best supplements for longevity?
There's no single longevity pill. The strongest evidence supports the basics: enough protein, creatine for muscle and strength, adequate magnesium and good sleep. That's how we built our range: grass-fed whey isolate, Creapure® creatine, magnesium glycinate + L-threonate, glycine and marine collagen. The Longevity Protocol brings all seven Centenarius products into one daily routine.
What supplements should women take after 40?
What supplements should women take after 40?
After 40, many women focus on keeping muscle, bone strength and sleep quality. Common basics are enough protein at each meal, 3–5 g of creatine a day, magnesium and collagen. Our founder, nutritionist Viktoria Krestina, covers creatine in detail in our Creatine for Women guide. Talk to your doctor before starting supplements, especially during menopause or if you take medication.
Is creatine safe for women, and does it cause weight gain?
Is creatine safe for women, and does it cause weight gain?
Creatine monohydrate is one of the most studied supplements and is considered safe for healthy adults at 3–5 g a day. Some women see a small rise on the scale in the first weeks. That's water stored inside muscle, not fat. Read more in our Creatine for Women guide.
Can you mix creatine with protein powder?
Can you mix creatine with protein powder?
Yes. Creatine is tasteless and dissolves easily in a protein shake, so many people add 5 g of Creapure® creatine to their whey protein. Taking it every day matters more than timing. Our Foundation Protocol pairs both.
Can I take creatine, collagen and magnesium together?
Can I take creatine, collagen and magnesium together?
Yes. They're commonly taken together and do different jobs: creatine supports muscle energy, collagen supports skin and joints, and magnesium supports relaxation and sleep. Many people take creatine and collagen in the morning and magnesium in the evening. If you take medication, check with your doctor first.
What is the best sleep supplement without melatonin?
What is the best sleep supplement without melatonin?
If you'd rather avoid melatonin, look for L-theanine, GABA, magnesium and glycine. Our Sleep & Mood Superior Formula combines Suntheanine® L-theanine, PharmaGABA®, magnesium bisglycinate and 5-HTP. Glycine is a simple single-ingredient option. 5-HTP isn't suitable if you take antidepressants, so ask your doctor.
What are the best supplements for muscle recovery?
What are the best supplements for muscle recovery?
The basics with the most evidence are protein after training, daily creatine and enough magnesium. Our Muscle Recovery Supplements collection brings together grass-fed whey isolate, Creapure® creatine and Dual Mag Power.
What supplements are good for skin?
What supplements are good for skin?
Collagen peptides are the most studied supplement for skin elasticity and hydration. Our wild-caught marine collagen (Types I–IV) is flavorless and mixes into coffee or smoothies. Glycine, the most abundant amino acid in collagen, is often taken alongside it.
What supplements can I take on a GLP-1 medication?
What supplements can I take on a GLP-1 medication?
People on GLP-1 medications often focus on getting enough protein to protect muscle, plus support for skin and digestion. Our GLP-1 Optimizer Bundle combines whey protein isolate, marine collagen, glycine and Smooth Moves. Always talk to your prescribing doctor before adding supplements.














