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.
For best results, 17a-ANDRO should be used as part of a structured Andro cycle and followed with proper post-cycle support. Choose your stack based on your goal, experience level, and training phase.
17a-ANDRO is Steel’s advanced stack-support Andro, built for experienced lifters who want more cycle depth, strength support, fullness, appetite support, and performance during aggressive mass, recomp, or physique-focused phases. Powered by a multi-active formula featuring 37.5 mg of 1,4 OHP, 20 mg of 6-Keto-Progesterone, and 250 mg of Rhaponticum carthamoides per tablet, 17a-ANDRO delivers 75 mg of 1,4 OHP, 40 mg of 6-Keto-Progesterone, and 500 mg of Rhaponticum carthamoides daily when used as directed.
This is not the simple one-lane Andro. 17a-ANDRO is built to support the structure around a more advanced cycle. Where 1-ANDRO is the lean-mass foundation, 4-ANDRO supports fullness and drive, 3-EPI-ANDRO supports dry hardening, 7,3-ANDRO supports recomp and definition, and 19-NOR-ANDRO supports mass, recovery, and heavy-output training, 17a-ANDRO is built as the stack-enhancement piece for users who want more fullness, appetite support, strength support, and cycle depth.
| Parameter | Specification |
|---|---|
| Primary Active | 1,4 OHP (17beta(3ketoethyl)-androsta-1,4-diene-3-one, 17a-ol)
37.5 mg per tablet / 75 mg daily active amount |
| Secondary Active | 6-Keto-Progesterone
20 mg per tablet / 40 mg daily active amount |
| Botanical Support | Rhaponticum carthamoides
250 mg per tablet / 500 mg daily active amount |
| Recommended Daily Use | 2 tablets daily |
| Bottle Count | 60 tablets |
| Cycle Supply | 30 days when used as directed |
| Formula Type | Advanced Andro stack support |
| Primary Lane | Fullness, appetite support, strength support, and cycle-depth enhancement |
| Best For | Experienced users building mass, recomp, or advanced physique-focused stacks |
17a-ANDRO is different because it is not designed to be the main dry hardener, the main mass driver, or the primary lean-mass foundation. Its role is more strategic. 17a-ANDRO is built to support advanced stacks where the user wants more fullness, appetite support, strength support, and overall cycle depth.
Where 3-EPI-ANDRO and 7,3-ANDRO are built for a tighter, drier, more defined look, 17a-ANDRO is better positioned as an advanced support product that can help round out more aggressive mass, recomp, or physique-focused cycles. It gives experienced users another lever to pull when they want more than a basic two-product stack.
That makes 17a-ANDRO one of the more specialized products in the Steel Andro lineup. It is not necessarily the first Andro every new user should start with. It is the product advanced users consider when they want to build a deeper, more complete cycle around size, fullness, appetite, strength, and performance.
17a-ANDRO is designed for experienced lifters who understand structured cycle-based supplementation and want to add more depth to their stack. It is best suited for users focused on mass phases, recomp phases, fullness, appetite support, strength support, and advanced cycle architecture.
If your goal is a simple first Andro cycle, 1-ANDRO or 4-ANDRO may be a cleaner starting point. If your goal is to build a more advanced stack with additional support for fullness, appetite, strength, and cycle depth, 17a-ANDRO belongs in the conversation.
Every Steel Andro is built with liposomal delivery technology to help support absorption and ingredient uptake. By pairing active Andro compounds with lipid-based carriers, this delivery system is designed to improve efficiency compared to standard oral formulas.
For 17a-ANDRO, that means each tablet delivers its multi-active formula in a format built for serious users who care about consistency, precision, and performance-focused formulation.
Products: 17a-ANDRO + 1-ANDRO + 4-ANDRO
Best for experienced users chasing lean mass, strength, fullness, appetite support, and a more complete growth-focused cycle.
Why this stack works: 1-ANDRO supports lean mass, strength, and density. 4-ANDRO supports fullness, drive, and cycle balance. 17a-ANDRO adds advanced stack support for users looking to support appetite, fullness, strength, and growth-phase performance during a structured cycle.
Best For:
Products: 17a-ANDRO + 4-ANDRO + 19-NOR-ANDRO
Best for experienced users chasing size, fullness, appetite support, recovery, joint comfort, and heavier training output.
Why this stack works: 4-ANDRO supports fullness, drive, and cycle balance. 19-NOR-ANDRO supports the mass, recovery, joint-comfort, and heavy-training lane. 17a-ANDRO adds advanced growth-phase support for users who want more appetite support, fullness, strength, and overall cycle depth.
Best For:
Products: 17a-ANDRO + 1-ANDRO + 4-ANDRO + 19-NOR-ANDRO
Best for highly experienced users chasing a more aggressive mass, fullness, recovery, appetite-support, and heavy-output training cycle.
Why this stack works: 1-ANDRO provides the lean-mass and strength foundation. 4-ANDRO supports fullness, drive, and cycle balance. 19-NOR-ANDRO supports strength, mass, recovery, joint comfort, and heavy-output training. 17a-ANDRO adds advanced stack support for users who want more fullness, appetite support, strength, and growth-phase depth.
Best For:
Products: 17a-ANDRO + 7,3-ANDRO + 3-EPI-ANDRO
Best for experienced users chasing a dry, hard, defined look with added stack support during a cutting or recomp phase.
Why this stack works: 7,3-ANDRO supports recomp, definition, and cutting support. 3-EPI-ANDRO supports the hardening and density lane. 17a-ANDRO adds advanced stack support for users looking to keep strength, fullness, and performance moving during a more aggressive physique-focused phase.
Best For:
Products: 17a-ANDRO + 1-ANDRO + 7,3-ANDRO
Best for experienced users focused on lean mass, definition, strength, and recomposition with added fullness and stack depth.
Why this stack works: 1-ANDRO supports lean mass, strength, and density. 7,3-ANDRO supports recomp, definition, and cutting support. 17a-ANDRO adds fullness, appetite support, strength support, and advanced cycle depth for users trying to keep performance and body composition moving in the right direction.
Best For:
Products: 17a-ANDRO + 4-ANDRO
Best for users who want a simpler two-product stack focused on fullness, drive, appetite support, and strength-supportive training.
Why this stack works: 4-ANDRO supports fullness, drive, and cycle balance. 17a-ANDRO adds more advanced support for appetite, fullness, and strength-focused training. This can be a cleaner option for users who want to keep the stack smaller while still adding more depth than a single-product cycle.
Best For:
For advanced lean mass and fullness: 17a-ANDRO + 1-ANDRO + 4-ANDRO
For advanced mass and recovery support: 17a-ANDRO + 4-ANDRO + 19-NOR-ANDRO
For Pro Series mass support: 17a-ANDRO + 1-ANDRO + 4-ANDRO + 19-NOR-ANDRO
For a ripped, defined look with added stack support: 17a-ANDRO + 7,3-ANDRO +
3-EPI-ANDRO
For recomp with fullness and cycle depth: 17a-ANDRO + 1-ANDRO + 7,3-ANDRO
For a smaller fullness and strength-support stack: 17a-ANDRO + 4-ANDRO
For full stack planning, view the complete Steel Andro Guide.
Because 17a-ANDRO is designed for structured cycle-based use, Steel recommends following your cycle with proper post-cycle support. Alpha-AF is Steel’s PCT and natural testosterone support formula, built with key minerals, hormone-support ingredients, and absorption support to help users transition after an Andro cycle.
For best results, use 17a-ANDRO as part of a structured Andro cycle and follow with Alpha-AF as post-cycle support.
Alpha-AF may also be used by experienced users seeking additional hormone-support and mineral support during or after a cycle, but it is most commonly positioned as the post-cycle support product in the Steel system.
If you are building a full Andro cycle, Alpha-AF should be considered part of the complete plan, not an afterthought.
ADABOLIC can be used alongside structured Andro cycles by users looking to support training output, pumps, recovery, hydration, and performance during demanding training blocks.
Best paired with: Mass, recomp, strength, and physique-focused Andro stacks where training performance, pump, hydration, and recovery support are priorities.
HYPERBOLIC is best suited for users in a calorie-supported growth phase. It pairs well with 17a-ANDRO stacks where the goal is size, fullness, appetite support, recovery, and consistent daily nutrition.
Best paired with: Mass, fullness, and growth-focused stacks such as 17a-ANDRO + 1-ANDRO + 4-ANDRO, 17a-ANDRO + 4-ANDRO + 19-NOR-ANDRO, or 17a-ANDRO + 1-ANDRO + 4-ANDRO + 19-NOR-ANDRO.
N.O.7 can be used as a non-stimulant pre-workout support product during physique-focused or recomp stacks. It is best positioned for users looking to support pumps and training performance without adding stimulant load.
Best paired with: Ripped, recomp, and physique-focused stacks where pump and training output are important.
Steel Andros are built for structured, goal-specific cycles. To get the most out of your cycle, support the process with disciplined training, nutrition, hydration, sleep, and post-cycle support.
During use, we recommend avoiding alcohol and unnecessary stressors that can work against recovery, hydration, sleep quality, liver health, hormone balance, and training performance. Users should not exceed the recommended daily use and should avoid combining multiple hormone-pathway products unless they are experienced and understand structured cycle-based supplementation.
For best results, pair your Andro cycle with consistent protein intake, goal-appropriate calories, progressive training, adequate rest, and proper post-cycle support with Alpha-AF.
For mass-focused cycles: Prioritize total calories, protein, carbohydrates,
hydration, and recovery. 17a-ANDRO is best used in stacks where the goal is fullness, appetite support,
strength, and growth-phase performance.
For recomp-focused phases: Use maintenance calories or a controlled deficit,
keep protein high, and avoid crash dieting. 17a-ANDRO can help support the stack when the goal is to maintain
performance, fullness, and strength while body composition improves.
For appetite and fullness support: Pair the cycle with consistent meals,
adequate carbohydrates, hydration, and electrolytes. Appetite support is only useful if the user actually turns
that food into productive training and recovery.
For users who struggle to eat enough: HYPERBOLIC can help support calorie intake and recovery during growth-focused phases where consistent nutrition is the difference between simply training hard and actually adding size.
For best results during an Andro cycle:
Advanced Stack Notice: More is not always better. Advanced stacks are intended for experienced users only. If you are new to Andros, start with a simpler cycle before combining multiple products. Users should choose a stack based on their goal, experience level, training status, and tolerance. Do not exceed recommended use.
Important Use Notice: Not for use by individuals under 18. Do not use if pregnant, nursing, or trying to become pregnant. Consult a qualified healthcare professional before use if you have or have had liver, kidney, cardiovascular, blood pressure, endocrine, prostate, cholesterol, or other medical concerns, or if you take prescription medications. Discontinue use and consult a healthcare professional if you experience adverse reactions.
Important Cycle Note: For maximum results, this product is designed to be used as part of a structured Andro cycle and followed with proper post-cycle support. Individual results may vary based on training, nutrition, consistency, experience level, and overall cycle structure.
Steel Andros are not casual daily wellness products. They are advanced performance supplements for experienced users who respect the process: train hard, eat with purpose, recover intelligently, avoid alcohol during use, and follow the cycle with proper post-cycle support.
17beta(3ketoethyl)-androsta-1,4-diene-3-one, 17a-ol (1,4 OHP) 37.5mg, 6-Keto-Progesterone 20mg, Rhaponticum carthamoides 250mg Other Ingredients: Microcrystalline Cellulose, Phosphatidylcholine, Hydroxpropyl-beta-cyclodextrin (HPBCD), Phytosterol, Stearic Acid, Magnesium Stearate, Starch, Titanium Dioxide, Silica.
