4 interest-free payments, every two weeks, at checkout
Select Afterpay
Choose Afterpay at checkout and use your existing payment card
Complete checkout
No long forms, approval decision online. Enjoy your purchase right away!
Pay over 4 payments
Pay every two weeks with zero interest! No fees when you pay on time.
You must be over 18, a resident of the U.S. and meet additional eligibility criteria to qualify. Late fees apply. Estimated payment amounts shown on product pages exclude taxes and shipping charges, which are added at checkout. Click here for complete terms. © 2019 Afterpay
The availability of payment options may differ depending on the merchant and purchase amount. Subject to approval. Additional terms may apply.
Monthly financing through Klarna issued by WebBank. Other CA resident loans made or arranged pursuant to a California Financing Law license. NMLS # 1353190.
At checkout select
Choose your payment plan
Different payment plans may be shown depending on the purchase amount and credit score.
Complete your checkout
The amount will be charged based on the payment plan you chose.
ONE+ is Steel’s daily multivitamin, built for men and women who want a simple, complete foundation for daily health, energy metabolism, immune support, cognitive function, physical performance, and overall wellness.
Powered by 23 essential vitamins and minerals, plus Choline, Magnesium, Calcium, and SPECTRA®, ONE+ is designed to help fill nutritional gaps and support the daily micronutrient foundation your body needs to perform.
ONE+ is built around a disciplined 100% Daily Value foundation for key vitamins and minerals. The goal is not to megadose every nutrient as high as possible. The goal is to provide a clean daily baseline that helps support energy metabolism, immune function, cognitive function, physical performance, and overall wellness without turning a multivitamin into a nutritional arms race.
More is not always better. Vitamins and minerals work together, and excessive intake of certain nutrients can compete with or disrupt the balance of others. ONE+ is designed to support daily coverage with structure, not chaos.
If your micronutrient foundation is weak, everything else has to work harder. ONE+ is built to make the basics easier.
Formula Type: Daily multivitamin capsule
Primary Lane: Daily health, micronutrient support, energy metabolism, immune support, cognitive function, and overall wellness
Best For: Men, women, lifters, athletes, busy professionals, active adults, hard-training users, and anyone who wants a simple daily micronutrient foundation
Vitamin + Mineral Foundation:
Vitamin A, Vitamin C, Vitamin D, Vitamin E, Vitamin K2, B vitamins, iodine, zinc, selenium, copper, manganese, chromium, and molybdenum
Energy Metabolism Support:
Vitamin B1, B2, B3, B5, B6, B9, B12, biotin, magnesium, and chromium
Immune + Wellness Support:
Vitamin A, Vitamin C, Vitamin D, Vitamin E, zinc, selenium, copper, and SPECTRA®
Cognitive + Nervous System Support:
B vitamins, choline, magnesium, iodine, and antioxidant-support nutrients
Antioxidant + Free Radical Support:
Vitamin C, Vitamin E, selenium, copper, manganese, and SPECTRA®
Each serving provides:
ONE+ is built for the foundation.
Most people think about supplements backwards. They chase stronger pre-workouts, more advanced formulas, harder stacks, and more aggressive products before making sure the basics are covered.
But your body runs on nutrients.
Vitamins and minerals support energy metabolism, nervous system function, immune system function, red blood cell formation, antioxidant defenses, thyroid function, muscle function, cognitive function, and overall wellness.
ONE+ gives users a simple daily way to support that foundation.
The goal is not to replace food. The goal is to help fill gaps that can happen even when someone is trying to eat well. Training, stress, busy schedules, lower-calorie diets, repetitive food choices, travel, poor sleep, and inconsistent nutrition can all make micronutrient coverage harder than people think.
ONE+ is built to help support the daily baseline so the rest of the plan has a stronger foundation.
ONE+ is designed for men and women who want a simple daily multivitamin to support health, energy metabolism, immune function, cognitive function, physical performance, and overall wellness.
It is a strong fit for lifters, athletes, active adults, busy professionals, hard-training users, people dieting, people traveling, and anyone who does not want to rely on random nutrition to cover every micronutrient every day.
ONE+ is also a smart fit for users building a serious supplement routine. Before stacking advanced products, it makes sense to cover the basic micronutrient foundation first.
If your goal is to train hard, think clearly, recover better, stay consistent, and support long-term health, ONE+ is the daily baseline.
A good multivitamin is not magic.
It does not replace quality food, protein, hydration, sleep, training, or recovery. But it can help support the nutritional foundation those things depend on.
Micronutrients are involved in thousands of processes in the body. They help enzymes function, support energy production, support immune defenses, assist antioxidant systems, support hormone-related pathways, help maintain nervous system function, and contribute to overall health.
The problem is that real life is not perfect.
People skip meals. They eat the same foods over and over. They diet. They travel. They train hard. They sweat. They sleep poorly. They work long hours. They do not always get enough fruits, vegetables, minerals, or micronutrient-dense foods.
ONE+ is built to help support the daily gaps.
It is not the whole plan. It is the foundation layer.
ONE+ provides 100% Daily Value of many key vitamins and minerals, including Vitamins A, C, D, E, K2, B1, B2, B3, B5, B6, B9, B12, biotin, iodine, zinc, selenium, copper, manganese, chromium, and molybdenum.
That matters because the goal of ONE+ is not to megadose everything into the ceiling.
The goal is to provide a clean daily baseline.
More is not always better. A smart multivitamin should help cover the foundation without turning every nutrient into an unnecessary megadose.
ONE+ is built for daily consistency, not nutritional chaos.
Bigger numbers do not automatically mean a better multivitamin.
Vitamins and minerals work together. Some nutrients compete for absorption. Some nutrients can affect the balance of others when taken too aggressively. Some fat-soluble vitamins can accumulate. Some minerals can create problems when the ratio is off.
That is why ONE+ is built around a clean 100% Daily Value foundation for the main vitamin and mineral panel.
The goal is responsible daily coverage.
Not chaos. Not ego-label dosing. Not “more because more looks better.”
A multivitamin should help support the foundation, not turn micronutrition into a guessing game.
ONE+ includes SPECTRA®, a plant-based antioxidant and performance-support blend designed to help support antioxidant defenses, free-radical management, nitric oxide pathways, and overall wellness.
Hard training, stress, poor sleep, environmental exposure, and demanding schedules can all increase the need for strong daily wellness support.
SPECTRA® helps add a broader antioxidant-support layer beyond standard vitamins and minerals.
This makes ONE+ more than a basic vitamin panel. It gives the formula another wellness-support lane for users who care about performance, recovery, and long-term health.
Vitamin A supports immune function, vision, cellular health, and overall wellness.
Vitamin C supports immune health, antioxidant protection, collagen formation, and overall wellness.
Vitamin D supports immune function, bone health, muscle function, mood-related wellness, and overall health.
Vitamin E is a fat-soluble antioxidant that supports cellular protection and overall wellness.
Vitamin K2 supports bone health and helps support proper calcium utilization in the body.
The B-vitamin family supports energy metabolism, nervous system function, red blood cell formation, cognitive function, and daily performance.
ONE+ includes B1, B2, B3, B5, B6, B9, B12, and biotin to help support the energy and metabolism side of the formula.
Iodine supports thyroid hormone production and healthy metabolic function.
Zinc supports immune function, hormone-related nutrition, cellular health, and overall wellness.
Selenium supports antioxidant defenses, thyroid health, and immune function.
Copper supports antioxidant enzyme systems, connective tissue health, iron metabolism, and overall wellness.
Manganese supports antioxidant systems, bone health, and metabolic function.
Chromium supports healthy glucose metabolism and carbohydrate utilization already within a healthy range.
Molybdenum supports enzyme function and normal metabolic processes.
Choline supports brain health, liver function, cell membrane structure, and nervous system function.
Magnesium supports muscle function, nervous system function, energy metabolism, and relaxation-related pathways.
Calcium supports bone health, muscle contraction, nerve signaling, and overall mineral balance.
SPECTRA® supports antioxidant defenses, free-radical management, nitric oxide pathways, and broad wellness support.
Use ONE+ as directed on the label.
ONE+ is designed for daily use.
For best results, take it consistently with food. Taking a multivitamin with food can help improve tolerance and may support absorption of fat-soluble vitamins such as Vitamins A, D, E, and K2.
Do not treat ONE+ like something you need to “feel” immediately. A multivitamin is not supposed to hit like caffeine.
The goal is daily coverage, consistency, and long-term foundation support.
Use ONE+ every day to support the basic vitamin and mineral foundation your body depends on.
Hard training increases the importance of nutrient coverage, recovery, immune support, and energy metabolism.
ONE+ is useful for people who do not eat perfectly every day but still want to support their micronutrient foundation.
Lower-calorie diets can make it harder to cover micronutrients through food alone. ONE+ helps support the daily baseline.
ONE+ includes Vitamin C, Vitamin D, zinc, selenium, copper, Vitamin A, and other nutrients that support immune system function.
B vitamins, choline, iodine, magnesium, and antioxidant-support nutrients help support mental and physical performance.
ONE+ is built as a daily staple for users who care about health, performance, consistency, and wellness over time.
ONE+ + IMMUNE-AF
Best for users who want daily multivitamin support with added immune-health support.
Why this stack works:
ONE+ supports the vitamin, mineral, antioxidant, and daily wellness foundation. IMMUNE-AF adds targeted immune-support ingredients for users who want a stronger wellness stack.
Best For:
ONE+ + Vitamin C
Best for users who want daily micronutrient support with additional Vitamin C support.
Why this stack works:
ONE+ provides 100% DV Vitamin C plus a full multivitamin foundation. Additional Vitamin C can be used by users who want more targeted antioxidant and immune-support nutrition.
Best For:
ONE+ + CoQ10
Best for users who want daily micronutrient support with additional cellular-energy and cardiovascular wellness support.
Why this stack works:
ONE+ supports the daily vitamin and mineral foundation. CoQ10 supports cellular energy production and cardiovascular-health routines.
Best For:
ONE+ + PROFLORA
Best for users who want daily micronutrient support alongside gut and microbiome support.
Why this stack works:
ONE+ supports the vitamin and mineral foundation. PROFLORA supports gut-health and microbiome-focused routines.
Best For:
ONE+ + ATP-FUSION
Best for users who want daily multivitamin support with creatine, cellular hydration, strength, power, recovery, and cognitive-performance support.
Why this stack works:
ONE+ supports the micronutrient foundation. ATP-FUSION supports creatine saturation, cellular energy, strength, power, recovery, and cognitive performance.
Best For:
ONE+ + Protein
Best for users who want daily micronutrient support while keeping protein intake consistent.
Why this stack works:
ONE+ supports the vitamin and mineral foundation. Protein supports muscle repair, recovery, satiety, and daily nutrition consistency.
Best For:
ONE+ + RESTED
Best for users who want daytime wellness support and nighttime sleep/recovery support.
Why this stack works:
ONE+ supports daily micronutrient coverage. RESTED supports relaxation, sleep quality, recovery, and next-day readiness.
Best For:
For daily immune support:
ONE+ + IMMUNE-AF
For antioxidant support:
ONE+ + Vitamin C
For cellular energy support:
ONE+ + CoQ10
For gut-health routines:
ONE+ + PROFLORA
For performance foundation:
ONE+ + ATP-FUSION
For nutrition support:
ONE+ + Protein
For sleep and recovery:
ONE+ + RESTED
If you want more from ONE+, stack it intelligently. Do not add products just because you can. Build the foundation: vitamins, minerals, protein, hydration, sleep, movement, gut health, and recovery.
ONE+ is the daily multivitamin foundation in the Steel health and wellness system.
ONE+ supports daily micronutrient coverage, energy metabolism, immune support, cognitive function, physical function, antioxidant support, and overall wellness.
IMMUNE-AF supports targeted immune-health routines.
Vitamin C supports antioxidant and immune-health nutrition.
CoQ10 supports cellular energy and cardiovascular-health routines.
PROFLORA supports gut-health and microbiome-focused routines.
ATP-FUSION supports creatine, cellular energy, strength, power, cognitive performance, and healthy aging routines.
RESTED supports sleep quality, relaxation, recovery, and next-day readiness.
ONE+ is not the loudest product in the stack. It is the daily baseline that helps everything else make more sense.
Use ONE+ with a diet built around protein, fruits, vegetables, healthy fats, carbohydrates, hydration, and consistent meals.
Micronutrients support energy metabolism, recovery, immune function, and overall performance. ONE+ works best when the food, training, and sleep are handled too.
When calories come down, micronutrient coverage can become harder. ONE+ helps support the baseline during controlled nutrition phases.
Do not use a multivitamin as an excuse to eat like a disaster. Use it as a foundation while still working toward better food quality.
Consistency matters. A multivitamin is not about one day. It is about covering the basics over time.
For best results while using ONE+:
Use as directed. Do not exceed recommended use.
Consult a qualified healthcare professional before use if you have any medical condition, are pregnant or nursing, or take prescription medications.
If using other supplements that contain overlapping vitamins or minerals, account for total daily intake.
Discontinue use and consult a healthcare professional if you experience adverse reactions.
ONE+ is Steel’s daily multivitamin foundation.
It is built for users who want daily vitamin and mineral support, energy metabolism support, immune support, cognitive and physical function support, antioxidant support, and overall wellness in a simple capsule format.
Do not overcomplicate the foundation. Eat real food. Hydrate. Sleep. Move. Train. Recover. Use ONE+ daily to help cover the micronutrient base that serious health and performance are built on.
