(2 customer reviews)


Chosen1 is a prohormone made and sold by Blackstone Labs. It is designed to increase testosterone, boost muscle size, increase strength and boost stamina.

This product contains a “1-DHEA blend”. This includes 1 androstene-3b-ol, 17-one, 17-one undecanoate and 1 androstene-3b-ol, 17-one caprylate. According to the manufacturer, the product could prevent the conversion of testosterone into estrogen.

The brand behind the product also says it could help users boost muscle growth without accumulating fat. It might also promote “more aggression in the gym” and support better bedroom performance.


2 reviews for Chosen1

  1. Darkman

    With a little more tweaking, this could be a big hit

    Since I’ve been on a continuous recomp for the past year, I’ve gotten assistance from various products, ranging from fat burners, to SARMS, to dry prohormones. I can honestly say that most have given me good results, while some were just so-so. When I saw the opportunity to review Blackstone Labs‘ Chosen 1, I was eager to test it. By the way, thanks to BSL for supporting the TROOPs. On to the review.

    —-Ingredient Profile—-

    1-DHEA Blend 65mg
    1 androstene-3b-ol, 17-one
    1 androstene-3b-ol, 17-one Undercanoate,
    1 androstene-3b-ol, 17-one Caprylate

    As you can tell from the ingredient profile, there is a blend of 3 forms of 1-DHEA (also known as 1-Androsterone or 1-Andro). For those very few who may be unaware as to wheat 1-DHEA is and what it does, here’s a brief summary.
    1-DHEA is not a steroid, however, it is a unique precursor to a powerful testosterone derivative known as 1-testosterone. It isn’t the same natural testosterone produced in the body, but it differs from actual testosterone only by a double bond isomer. As a complex compound, they are both different, however 1-testosterone is considered much more potent. It has an anabolic: androgenic ratio of 1:2, meaning drier gains and more aggression in the gym.

    The 1-DHEA blend in Chosen 1 totals 65 mg per tablet (60 tabs per bottle). Other competitors, such as Super Mandro (Hard Rock Supplements) contain almost twice that amount and 30 more capsules. There are others, however that contain anywhere from 25-50 mg of 1-DHEA without the luxury of having an enhanced delivery system, ensuring that more product gets absorbed.

    Chosen 1 uses a liposomal delivery system and also enhances it by attaching esters to the 1-DHEA molecule to control its release, essentially giving the 1-DHEA a sustained release effect; pretty cool, but does it work? Read on.


    The tablets are small, tasteless, and easy to swallow. The label recommends to take one tablet twice a day with food. However, I took two tablets three times a day with food. Why? Well, after receiving my bottle, I read about a recent published study conducted at West Texas A&M University. In this study, 9 males with an average of 5 years experience in resistance training and an average bodyfat of 13% were given 330 mg of 1-Andro daily for 4 weeks while completing a structured resistance training program. Data was collected pre-cycle and post-cycle on: lean mass, strength, lipids, and cardiac metabolic function. The 9 males gained an average lean mass of 10.4 lbs and an increase in strength of 92.2 lbs in total load on bench/squat/deadlift. It is important to keep in mind that these results were seen from 330 mg of pure 1-Andro taken daily.

    This article gives a pretty in-depth overview of the study:

    After I read the study, I bought two extra bottles and upped the recommended dosage.


    Taking six tablets per day yielded some truly impressive results. I wasn’t expecting West Texas A&M-like results, but I was pleased with what I saw. My weight increased from 221 to 228, but my waist shrank a little more than an inch. My muscles were harder and tighter, however, I did lose a little bit of definition in my abs…go figure. My lifts were up an average of 25 pounds. I definitely had increased aggression and that alpha, don’t f*ck with me attitude, but keep in mind that I also tripled the dosage to be more on par with the West Texas A&M study. I felt a little lethargic when taking Chosen-1, but I understand that’s to be expected whenever a DHT-related product is taken without a test base. For those looking more toward a lean bulk, I recommend stacking Chosen 1 with a 4-andro or a 19 nor product.

    Also, it is important that you follow a proper PCT protocol following the use of products like this. I’m currently using toremifene.


    The best price I was able to find for Chosen 1 was on eBay for about 60 bucks. Other online retailers offer it from anywhere between 65-80 dollars. Considering I had to purchase extra bottles to notice anything, I would say that unless money is no object, look to other higher dosed alternatives, because Chosen 1 can be pretty expensive.

    —-Side Effects—-

    Increased aggression, slight lethargy, increased libido, one rogue zit on my cheek


    Blackstone Labs has the right idea in adding a liposomal delivery system for enhanced absorption. However, I really think that Chosen 1 is underdosed. Taking it as per the label means you’re getting 130 mg of 1-DHEA into your system. As I previously mentioned, Super Mandro has 110 mg of 1-DHEA with 90 capsules and it also uses a liposomal delivery system. Taking this 3 times a day will give users the 330 mg used in the West Texas A&M study.

    If Blackstone Labs added some more milligrams of 1-DHEA to its product while retaining the price point, it could have a mega hit on its hands.

  2. sergiosays

    CHOSEN1: A Prohormone with the potential to be the BEST. (I wish i was joking!!)
    Big thank you for BSL for allowing me to try this product.

    Preface: I took this supplement during a lean bulk. I started at 192..and i ended at 195.5. I have nearly 5 years of lifting experience and this was my first prohormone ever.

    —-Ingredient Profile—-

    This PH is extremely mild and is actually a precursor to the precursor of testosterone. It does not aromatize(convert to estrogen) so the leans are dry..which i share help make the muscles look tighter.

    1-DHEA convert first to 1-Androstendiol, then to 1-Testosterone.

    In addition, BSL uses a liposomal delivery in which they increase the effectiveness of this product and its absorption rate., details the meticulousness of how this product enters and works in the body.

    No issues with taste as in capsule form. Capsules easy to swallow and no issues.

    2 capsules per day. one consumed in morning and the other consumed at night.

    I was impeccable on consuming the dosing of this product every day for 4 weeks. It wasnt until the end of the 2nd week did i begin to reap its full effects.

    Week3&4: By the start of the 3rd week I can see how much more tightly my skin looks around my muscles. Imagine waking up in the morning with about 30% of what a normal pump is for you. This is how i looked on CHOSEN1. It felt extremely nice having this extra tightness compliment my muscles.

    Recovery: THIS is where this product will yield the most benefit for everywhere! Imagine Maxing out on your favorite workout, then proceeding to do 3-4 more sets at 85% intensity, then followed by more intensity and more volume! The recovery between sets definitely felt shortened, but even more so the recovery between your days will be phenomenal. Anecdotally, I would say that this ph cut my recovery by half! no bs. This PH is definitely made to be taken advantage of, you hit the gym tremendously hard, you recovery exceptionally fast, and you repeat.

    Strength: This supplement could be better solicited as a plateau breaker. Without a doubt by the end of week 4..I went from maxing out at 205…to hitting 225 for 3 reps. My dumbbell shoulder press went from 70 pounds 8-10, to 12-14. Do not entertain my numbers, but I vehemently will contend that this PH helped increase my strength and power across the board.

    Pump: With the combination of recovering quickly and having the strength to persevere…by default you will experience a significant pump. Your arms will engorge with blood, you will swell the fk up(cursing justified!), and the vascularity will become more pronounced. Naturally, I do not have extremely apparent veins, however i did enjoy having them more apparent throughout this cycle.

    Aggression: Many people tend to notice an increase aggression while on this PH. I did not experience anything of this sort. In addition, some individuals seek an “on” feeling with on a prohormone. This sensation were you feels a heightened sense of alpha..again unfortunately I did not experience this. However, this did not bother me none as this PH did exactly what it was supposed to do increase recovery, pump, and strength.

    Labido: Again, it wasn’t until the last 2 weeks did I notice the effects this had on my labido. Warning*** morning wood is almost guaranteed with this that always made for a nice chuckle. Moreover, i did find that this product helped my last longer too…maybe some loss of sensitivity initially, but the added duration it gave me was definitely appreciated.
    I would recommend this product be taken in its full 8 weeks, I cannot imagine the abundance of that would come from this prolonged cycle.

    This product can be found anywhere from $55-65, depending on where you look. Make sure to seek a representative at Blackstone labs as they can accommodate discount codes many of the times.

    —-Side Effects—-
    I would say throughout my 4 week cycle, 4-5 did I experience a random burst of hot flash..typically in the night. It would last about 4-5 minutes and then subside…nothing too alarming.

    If you are familiar with PH or a first time user, this product will definitely give you the bang for buck, the kick to jumpstart your gains, the recovery to do what you love, and the pump and power to dominate. This product did exactly what it was said out to do for me and I could have not been any more happier with the results. I only wish it would have lasted longer. Given its immense effectiveness it eclipses the fact that this product takes 2 full weeks before it takes full effect. At $55-65 for 1 bottle or $110~ish for 2. I confidently say that this product is a winner and worthy trying.

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