Dark Labs

Dark Labs - Double Yohimbine - 100 Servings

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Dark Labs Double Yohimbine is a single-purpose yohimbine supplement combining 9 mg Yohimbine HCl with 1 mg Rauwolscine (Alpha-Yohimbine) per capsule. Designed for experienced supplement users with established yohimbine tolerance who want to add it to their structured diet and training routine. For healthy adults 18+ only. Not for stim-sensitive users. 100 capsules per bottle.

What Is Dark Labs Double Yohimbine?

Dark Labs Double Yohimbine is a single-purpose standalone yohimbine supplement that combines two related compounds: Yohimbine HCl and Rauwolscine (Alpha-Yohimbine) in a single capsule format.

Rather than including yohimbine as one ingredient among many in a multi-blend formula, this product isolates two yohimbine compounds as its only active ingredients. Each capsule delivers 9 mg of Yohimbine HCl plus 1 mg of Rauwolscine, for a total of 10 mg of combined yohimbine compounds per serving.

This positioning is intentional. Experienced supplement users sometimes want to add yohimbine to their existing stack for example, to a pre-workout or stim formula that doesn't already contain yohimbine, without taking on the additional caffeine, stimulants, or other compounds that come with a full thermogenic formula. Double Yohimbine fills that specific role.

QUICK TAKE: WHAT DOUBLE YOHIMBINE IS (AND ISN'T)

A standalone yohimbine supplement, not a multi-ingredient thermogenic blend

Contains 9 mg Yohimbine HCl + 1 mg Rauwolscine per capsule

100 capsules per bottle - 100 servings

Designed to be added to existing supplement routines, not used in isolation

Not appropriate for first-time supplement users

Not appropriate for anyone with established stimulant sensitivity

Requires careful tolerance assessment due to yohimbine's effect profile

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Understanding Yohimbine and Rauwolscine

Yohimbine is an alkaloid compound derived from the bark of the African yohimbe tree (Pausinystalia johimbe). It's been used in traditional African herbal practice for centuries and has been studied in modern research for its role in supporting metabolic activity during structured diet phases.

Rauwolscine, also known as Alpha-Yohimbine, is a stereoisomer of yohimbine, meaning it has the same molecular formula but a different three-dimensional structure. It's extracted from the Rauwolfia Vomitoria plant and is researched alongside yohimbine for its complementary effects.

Combining both compounds in one supplement reflects current research suggesting that the two work through related but distinct pathways. Some users find the combination more practically useful than either compound alone.

Important: Yohimbine is one of the most notable supplement ingredients for individual response variability. Some experienced users respond very well to it; others find even small doses cause significant anxiety or elevated heart rate. Always start with HALF a capsule on your first dose to assess your individual response.

Who Is Double Yohimbine Designed For?

Double Yohimbine has a narrow user profile. It's not a general consumer supplement, it's a specialised product for specific use cases.

Appropriate For (All Criteria Should Be Met):

  • Healthy adults 18+ with prior yohimbine experience
  • Users following a structured calorie-controlled diet and consistent training routine
  • Users wanting to add yohimbine to a pre-workout or stim formula that doesn't already contain it
  • Users who have used yohimbine-containing supplements before without anxiety, elevated heart rate, or other adverse reactions
  • Users with no cardiovascular, anxiety, or stimulant-related concerns
  • Users not taking any prescription medications that interact with yohimbine

NOT Appropriate For:

  • Anyone under 18
  • First-time supplement users, start with mainstream products
  • Anyone sensitive to caffeine, stimulants, or yohimbine
  • Anyone with high blood pressure or any cardiovascular condition
  • Anyone with anxiety, panic disorder, or mood disorders
  • Anyone with thyroid disease, diabetes, or any hormonal condition
  • Pregnant or nursing women
  • Anyone taking MAOIs, antidepressants (SSRIs, SNRIs, tricyclics), blood pressure medications, or stimulant medications
  • Anyone taking any prescription medication without explicit medical clearance
  • Athletes in regulated drug-tested competition, verify with sport-specific governing body

This product is NOT designed for women specifically (despite competitor marketing sometimes suggesting otherwise). Yohimbine affects men and women differently, and women often experience more pronounced anxiety and cardiovascular side effects. Women should approach yohimbine supplementation with extra caution and medical guidance.

Double Yohimbine - Supplement Facts

Serving Size: 1 Capsule | Servings Per Container: 100 | Recommended Use: 1 capsule daily, taken on an empty stomach in the morning or before training. Start with half a capsule to assess tolerance.

Ingredient

Per Capsule

Role†

Yohimbine HCl

9 mg

Alkaloid compound derived from yohimbe tree bark; may support metabolic activity during structured diet phases†

Rauwolscine (Alpha-Yohimbine)

1 mg

Stereoisomer of yohimbine extracted from Rauwolfia plant; researched alongside yohimbine for complementary effects†

Other Ingredients: Gelatin (Capsule), Titanium Dioxide, FD&C Red #40, FD&C Blue #1, Silica, Magnesium Stearate, Rice Flour.

How to Take Double Yohimbine?

Recommended Use: Take 1 capsule daily with 8-12 fluid ounces of water, on an empty stomach (yohimbine absorption is significantly reduced when taken with food).

QUICK TAKE: CRITICAL DOSING GUIDELINES

ALWAYS start with HALF a capsule on your first dose, regardless of prior stim experience

Take on an empty stomach in the morning OR 30 minutes before training

Yohimbine absorption is much higher on an empty stomach, but this also intensifies effects

Wait at least 90 minutes after dosing to assess your individual response

Do NOT exceed 1 capsule per day under any circumstances

Avoid taking after 2 PM, the stim effects will significantly disrupt sleep

Do not combine with other stimulants on the same day (no caffeine pre-workouts, no fat burners, limit coffee)

Cycle off after 4-6 weeks of consistent use, tolerance builds and effectiveness diminishes

How to Stack Double Yohimbine?

Double Yohimbine is positioned specifically as an add-on to existing supplement routines. However, given yohimbine's potency and side effect profile, stacking must be done very carefully.

Safe Pairings

With protein and amino acids: Protein supplements and amino acid products provide foundational nutrition with no yohimbine interaction.

With creatine: Creatine works on a completely different mechanism, no compounding risk with yohimbine.

With a stimulant-free pump pre-workout: A non-stim pre-workout can add pump support without compounding the yohimbine's stimulant load.

Stack Carefully With

Caffeinated Pre-Workouts: Many users do combine Double Yohimbine with a caffeinated pre-workout that doesn't already contain yohimbine. If you choose this stack, start with half a capsule of Double Yohimbine and a half scoop of pre-workout to assess your combined tolerance. The compounded stimulant load can be significant.

Do NOT Stack With

  • Other yohimbine-containing products, risk of yohimbine overdose
  • Pre-workouts that already contain yohimbine (check labels carefully)
  • DMAA, DMHA, or geranium-extract products (compounded stim load)
  • Multiple fat burners simultaneously
  • Energy drinks or excessive coffee on the same day
  • Prescription stimulants, MAOIs, SSRIs/SNRIs, blood pressure medications, or antidepressants

Safety, Side Effects, and Critical Warnings

Yohimbine has a well-documented side effect profile and significant drug interaction potential. Take this section seriously before purchasing or using this product.

COMMON SIDE EFFECTS OF YOHIMBINE

Anxiety, restlessness, or jittery feelings

Increased heart rate (tachycardia)

Elevated blood pressure

Sweating, particularly cold sweats

Nausea or stomach discomfort

Headaches

Insomnia if taken late in the day

Increased urination

Reduced appetite (some users)

CRITICAL DRUG INTERACTION WARNINGS

MAOIs (monoamine oxidase inhibitors) - DANGEROUS interaction, do NOT combine

SSRIs and SNRIs (antidepressants) - significant interaction risk

Tricyclic antidepressants - significant interaction risk

Blood pressure medications (especially clonidine) - interaction risk

Stimulant medications (Adderall, Ritalin, etc.) - compounded cardiovascular risk

Blood thinners - possible bleeding risk

Diabetes medications - possible glycemic effects

Always consult your healthcare provider before combining yohimbine with any prescription medication

WHEN TO SEEK MEDICAL ATTENTION IMMEDIATELY

Chest pain or pressure

Irregular or rapid heartbeat that persists

Severe headache or dizziness

Severe anxiety or panic attack

Fainting or loss of consciousness

Severe nausea or vomiting

Any other acute concerning symptom

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This product contains yohimbine, which has a known side effect profile and significant drug interaction potential. For use by healthy adults 18+ with established yohimbine tolerance only. Always consult a qualified healthcare professional before use, particularly if you take any prescription medications or have any underlying health condition.

Frequently Asked Questions

1. What is Dark Labs Double Yohimbine?

Double Yohimbine is a standalone single-purpose supplement containing 9 mg of Yohimbine HCl and 1 mg of Rauwolscine (Alpha-Yohimbine) per capsule. Unlike multi-ingredient thermogenic formulas, it isolates these two yohimbine compounds without caffeine, DMHA, or other stimulants, making it designed primarily as an add-on to existing supplement routines for experienced users.

2. What's the difference between Yohimbine HCl and Rauwolscine?

Both are alkaloid compounds, but with different molecular structures. Yohimbine HCl comes from the yohimbe tree (Pausinystalia johimbe) and is the more researched of the two. Rauwolscine (also called Alpha-Yohimbine) is a stereoisomer same molecular formula, different 3D structure extracted from the Rauwolfia plant. Research suggests they work through related but distinct pathways, which is why some products combine both.

3. Who should NOT take Double Yohimbine?

Yohimbine has a significant side effect profile and many contraindications. Do not use this product if you: are under 18, are pregnant or nursing, have any cardiovascular condition (high blood pressure, heart issues), have anxiety or mood disorders, have thyroid disease, take MAOIs/SSRIs/SNRIs/antidepressants, take blood pressure medications, take prescription stimulants, are sensitive to caffeine or stimulants, or have any underlying health condition. Always consult your healthcare provider first.

4. How should I take Double Yohimbine for the first time?

Always start with HALF a capsule on your first dose, regardless of your prior stimulant experience. Take on an empty stomach in the morning. Wait at least 90 minutes to fully assess your individual response. Yohimbine has highly variable individual responses, some people tolerate it well, others find even half a capsule produces significant anxiety or elevated heart rate. Build to a full capsule only if half is well-tolerated.

5. Why does Double Yohimbine need to be taken on an empty stomach?

Yohimbine absorption is significantly higher when taken on an empty stomach versus with food. Taking with food can reduce its bioavailability by 50% or more. However, this means taking on an empty stomach also intensifies the effects, including potential side effects. If you find empty-stomach dosing too intense, taking with a small amount of food can moderate the response, though the effects will be reduced.

6. Can I take Double Yohimbine with my pre-workout?

Carefully, and only if your pre-workout doesn't already contain yohimbine (check the label). If you choose to combine, start with half a scoop of pre-workout and half a capsule of Double Yohimbine to assess your combined response. The compounded stimulant load from caffeine + yohimbine can be significant. Never stack Double Yohimbine with a pre-workout that already contains yohimbine, DMHA, or DMAA.

7. Is Double Yohimbine banned in sports?

Yohimbine is not currently on the World Anti-Doping Agency (WADA) prohibited substances list as of recent updates, but anti-doping rules can change. Some sport-specific governing bodies have stricter rules than WADA. Always verify with your specific sport's governing body before use if you compete in regulated competition. The drug-testing landscape is constantly evolving.

8. How long should I take Double Yohimbine before cycling off?

Most experienced yohimbine users cycle the supplement in 4-6 week phases, followed by 2-4 weeks off. This is because tolerance to yohimbine builds with consistent use, meaning the effects become less pronounced and side effects can become more pronounced over time. Cycling off allows your body's response to reset before another cycle. Some users prefer even shorter cycles of 2-3 weeks on, 1 week off.

9. Will I lose more body fat with Double Yohimbine?

Yohimbine is a supplement that may support metabolic activity during a structured diet phase, but it's not a magic solution and individual responses vary significantly. The compounds in this product cannot overcome a poor diet or inconsistent training. Meaningful changes in body composition come from a calorie-controlled diet and consistent training. Yohimbine is an addition to that work, not a replacement for it. Set realistic expectations.

10. What's the difference between Double Yohimbine and a multi-ingredient fat burner?

Multi-ingredient thermogenic formulas (like Blackstone Labs Arson or SoCal Supps' Wild Fire) combine yohimbine or its variants with caffeine, DMHA, Eria Jarensis, and other stimulants and lipolytic compounds. Double Yohimbine isolates just two yohimbine compounds without any other stimulants, making it useful as an add-on to other formulas that don't contain yohimbine, or for users who want to assess yohimbine's effects without compounding variables. The total stimulant load is lower than most multi-ingredient thermogenics.

CONCLUSION

You now know what Dark Labs Double Yohimbine is, the difference between Yohimbine HCl and Rauwolscine, and the strict criteria for who should and shouldn't use this product. Yohimbine is a serious compound with a meaningful side effect profile, not a general consumer supplement. If you're an experienced supplement user with prior yohimbine tolerance, no cardiovascular or anxiety concerns, no relevant medication interactions, and you're following a structured diet, Double Yohimbine offers a single-purpose yohimbine option from Dark Labs. Always start with half a capsule, take on an empty stomach, and consult a healthcare professional before use.

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