Xeno Labs Primo S (Tablet) – 25mg/50tabs
✓ Build Quality Lean Muscle – Gain 6-10 pounds of permanent muscle with zero bloat
✓ Safest Oral Steroid – Minimal liver toxicity compared to other oral compounds
✓ No Injections Needed – Convenient oral tablets for easy daily dosing
✓ Perfect for Cutting – Preserve every ounce of muscle while shredding fat
Original price was: $79.90.$69.90Current price is: $69.90.
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Why You Should Buy Xeno Labs Primo S (Tablet) – 25mg/50tabs at Steroiduck?
What It Does
Primo S contains Methenolone Acetate at 25mg per tablet – the oral version of the famous Primobolan compound. While injectable Primobolan Depot uses the enanthate ester, Primo S uses the acetate ester in oral form, making it one of the mildest and safest oral steroids available.
When you take Primo S, it increases nitrogen retention and protein synthesis at a moderate rate without causing water retention or estrogenic side effects. The acetate ester provides faster action than injectable Primobolan Enanthate, with effects noticeable within 7-10 days of starting.
Unlike harsh C17-alpha alkylated oral steroids (Dianabol, Anadrol, Winstrol) that destroy your liver, Primo S has minimal hepatotoxicity. While it does pass through the liver, it’s significantly gentler than other oral steroids, making it safer for extended use.
The Main Benefits For You
Quality Muscle You Keep
Primo S produces 6-10 pounds of lean muscle over 8-12 week cycles. These gains are permanent – real muscle tissue that stays on your frame after PCT. Studies show 85-90% of Primo gains are retained long-term, compared to 50-60% with wet compounds.
Zero Water Retention
Methenolone Acetate doesn’t aromatize to estrogen at all. Your muscles stay dry, hard, and defined. No morning puffiness. No bloating. This makes it perfect for lean bulking or cutting when you want quality gains without looking watery.
Mildest Oral Steroid
With an extremely low androgenic rating and minimal liver stress, Primo S has fewer side effects than any other oral steroid. No gyno risk. Minimal acne. Less hair loss than DHT derivatives. Even women can use it at low doses.
Minimal Liver Toxicity
While all oral steroids stress the liver somewhat, Primo S is significantly less hepatotoxic than C17-alpha alkylated orals. You can run it for 8-12 weeks with proper liver support without the extreme damage caused by Dianabol or Anadrol.
Faster Acting Than Injectable
The oral acetate ester works within 7-10 days, compared to 4-5 weeks for injectable Primobolan Enanthate. You see results faster, making oral Primo useful for shorter cycles or kickstarting longer cycles.
Excellent for Cutting
During contest prep, Primo S preserves muscle tissue when eating in a calorie deficit. You lose fat while maintaining every pound of hard-earned muscle. The dry, hard look it creates is perfect for stage conditioning.
No Injections Required
Simply swallow tablets with meals twice daily. No needles, no vials, no injection site rotation. The convenience makes it ideal for those who prefer oral administration.
FDA DISCLAIMER: This product isn’t intended to diagnose, treat, cure, or prevent any disease. Methenolone Acetate is a controlled substance and should only be used under proper medical supervision for legitimate medical purposes.
Recommended Dosage for Male:
50-100mg daily split into two doses. Beginners start with 50mg daily (two tablets). Intermediate users run 75mg daily (three tablets). Advanced users go to 100mg daily (four tablets). Split daily dose: take half in morning with breakfast, half in evening with dinner.
Recommended Dosage for Female:
10-25mg daily for women who choose to use it. Start at 10mg daily (less than one tablet) and monitor closely for any masculine side effects. Primo S is one of the safer orals for women, but virilization can still occur.
When to Take:
Take with meals for best absorption and to reduce stomach discomfort. Split daily dose evenly - if using 50mg daily, take 25mg with breakfast and 25mg with dinner.
Cycle Duration:
8-12 weeks for most users. The lower hepatotoxicity allows longer cycles than harsh oral steroids. Many users run 10-12 weeks for maximum quality gains.
Stacking:
Always stack with testosterone base. Common stack: 75mg Primo S daily + 500mg Testosterone Enanthate weekly for lean mass building. Cutting: 50mg Primo S daily + 400mg Testosterone weekly + 50mg Anavar daily for extreme definition.
Liver Support (REQUIRED):
Take TUDCA 500-1000mg daily, NAC 1200mg daily, and milk thistle 1000mg daily throughout cycle. While Primo S is milder than other orals, liver support is still essential for safety.
Post Cycle Therapy (PCT):
Required after cycle ends. Stop Primo S when stopping other compounds. Begin PCT based on longest ester used. If running with Testosterone Enanthate, start PCT 2 weeks after last injection: Nolvadex 40/40/20/20mg daily + Clomid 50/50/25/25mg daily for 4 weeks.
Most Common:
- Mild to moderate testosterone suppression
- Minimal liver stress (much less than other oral steroids but still present)
- Mild acne (less than most steroids)
- Slight oily skin
- Possible mild hair shedding if genetically predisposed
- Negative cholesterol impact (HDL decreases moderately)
Less Common:
- Moderate liver enzyme elevation with high doses or extended use
- Reduced natural testosterone production requiring PCT
- Possible prostate effects in older users
How to Manage:
Take liver support supplements daily (TUDCA, NAC, milk thistle). Get blood work at week 6 checking liver enzymes (ALT, AST), cholesterol, testosterone. Do cardio 3-4x weekly. Take fish oil 4-6g daily. Use testosterone base to prevent low testosterone symptoms.
Active Ingredient:
Methenolone Acetate (Oral Primobolan)
Dosage Strength:
25 mg per tablet
Quantity:
50 tablets per bottle (1250mg total)
Form:
Oral tablets
Intended Use:
Primary medical use: Treating muscle wasting diseases, malnutrition, anemia (historical use).
Primary bodybuilding use: Lean bulking, cutting cycles, muscle preservation, contest preparation, women's cycles, beginner-friendly oral steroid.
Classification:
DHT (dihydrotestosterone) derivative, oral androgen with acetate ester
Mechanism of Action:
Methenolone is DHT with additional double bond at carbon 1-2 and methyl group at carbon 1. The oral acetate ester allows absorption through digestive system. Increases protein synthesis and nitrogen retention moderately. Does not aromatize to estrogen. Has mild anti-catabolic effects. Less hepatotoxic than C17-alpha alkylated orals but does pass through liver.
Half-Life:
4-6 hours (requires twice-daily dosing for stable blood levels)
Detection Time:
4-5 weeks after last dose in drug testing
Bioavailability:
Moderate oral absorption (higher than injectable due to acetate ester designed for oral use)
Anabolic/Androgenic Ratio:
88:44-57 (moderate anabolic, very low androgenic)
Aromatization:
None - Cannot convert to estrogen
DHT Conversion:
Is already DHT derivative
Hepatotoxicity:
Low to Moderate - Not C17-alpha alkylated, so significantly less liver toxic than most oral steroids, but does stress liver more than injectable Primobolan. Liver support mandatory.
Effects on Cholesterol:
Moderate negative impact. Reduces HDL by 15-25%. Less severe than harsh oral steroids.
Molecular Formula:
C22H32O3 (Methenolone Acetate)
Molecular Weight:
360.49 g/mol
Administration:
Oral tablet, swallow with water and food. Split daily dose into morning and evening for stable blood levels due to short 4-6 hour half-life.
Storage:
Store at room temperature (68-77°F or 20-25°C) in a dry place. Protect from moisture and light. Keep in original container. Keep out of reach of children.
Also Known As:
Primobolan Oral, Primobolan Tablets, Methenolone Acetate, Nibal
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