Janus anti shock - prostate massager by Zini - review by Trysexual

Janus anti shock

Prostate massager by Zini

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Caution: Objects may appear larger than they really are

This is a well made toy and does target the prostate as advertised. It is comfortable to wear and more or less does what it's designed to do. On the whole, I am not sure these devices live up to the hype and implied promises of mind blowing "hands-free orgams" or the elusive "super-O", but they do add some intensity to orgasm, just not as much as other toys I have used. This is better than the aneros SGX, but nowhere near as fun as the Get a grip was for me, so I give it about a 3.7
Silicone, appearance, hits p spot, choice of size.
Price, not sure these live up to the hype, Smaller than appears in photos.
Rating by reviewer:
extremely useful review


The Janus Anti-Shock (made by Zini), is in similar style as the aneros/nexus line of prostate massagers. They are designed to be worn during masturbation or sex, or in the case of the Super-O/Hands-free orgasm & holy grail of male orgasms quest, you might call it meditation or relaxation sessions. In these reported events, men can have body convulsing, multi-orgasmic, almost black out extended orgasms, without ejaculation that can last from minutes to hours. Not all men's prostates are created equal or the same distance from the anus though, so experiences vary and it can reportedly take years of "trying" and frustration to reach that first super-o (the equivalent of multi-orgasmic squirting in women you could say). The secret to such pleasures seems to be in not "trying" and just relaxing and letting it happen. Easier said than done. It helps to having been trained in kegels and re-wiring your body, so to speak.

Utopian orgasms aside, prostate stimulation and wearable P-spot massagers can help regular men achieve much better, intense orgasms and stronger ejaculations, with a more body centered experience.

You do not need to manipulate the anti-shock. Just relax, lube, insert it and go about your business and enjoy.

The idea is to let your natural (conscious and unconscious) anal/pc contractions alternately draw the toy in and let it slide out repeatedly. This produces some nice gentle stimulation against the prostate, which in turn sends tingles up and down your spine and around your genital area, resulting in an intense release.
  • Who / How / What
    [ ? ]
    Who might this product be best for? How is it best used? What are the best circumstances or situations for using this product?
    • Couples
    • Solo
  • Where
    [ ? ]
    Where / what types of places can this product be used?
    • Anywhere
  • Features
    [ ? ]
    What kind of features does this product offer?
    • Travel friendly
  • Body / part areas
    [ ? ]
    What areas on the body can this product be used / what areas does it stimulate best?
    • Anal
    • Kegels
    • P-spot

Material / Texture

The material is silicone and has no noticeable odor. It is non porous and easy to care for, since it can be sterilized properly. The Anti-shock is firm and rigid, but has an exterior silicone coating. Silicone inherently has some drag, but using a good amount of water based lube will reduce any negative sensations associated with that. The handle is plastic.

There are contours on the back of the head and some textured ridges on the front side and a rounded bulb that rests against your prostate (hopefully!)

Silicone is great, especially for an anal toy, but I have to say, I almost wish it was not, so I could use a silicone lube. Water based work fine, but silicone JO premium would add more pleasure and long lasting ability. I'm not going to hold good materials against the anti-shock though.
    • Bumpy
    • Not porous at all

Design / Shape / Size

Janus offers the Anti-shock in 3 different sizes. 3/4", 1" and 1 1/4" diameters. I originally planned on the smallest, but decided to go for the middle size after my previous experiences. Janus believes smaller widths are for novices and thicker are for experts, which interestingly, is the exact opposite of the Aneros philosophy. I am not experienced enough to say which is right and which is wrong. I do know some of the bigger ones out there look intimidating to me, as an intermediate anal player. I think it comes down to anatomy and personal preference as to which size to choose.

The Janus Anti-Shock is 4 3/4" in length overall (3 1/4" insertable). It is 1" in diameter or about 2 1/2" circuference and weights .2lbs. It is solid plastic, with a coating of textured silicone and the body has some contours to it. It is curved to ergonomically hit your prostate. There are contours to stimulate the anal wall as well. To be honest though, it doesn't feel anywhere near as thick as 1" in use. I'll echo others sentiment and wish I had gotten the largest size.

Janus claims the 72.5 degree angle (the angle of the probe from the base) is the magic angle for prostate stimulation. I won't argue, because it does hit the spot it is designed for.

I wouldn't really call it travel friendly if you live in fear of TSA interrogation, but its small enough to travel with for sure, if you don't mind a small chance of being asked what it is. The good news it is not metal and shouldn't alert anyone with a video screen.

The design is kind of futuristic and whimsical. It looks like they took aneros original designs and made them more high tech and textured. Janus appears to have taken Aneros basic and plain-ish design and jazzed it up a notch. The perineum stimulator is a rounded ball shape, which is much improved from the dime shaped Aneros massagers. It is much more comfortable, but like all of these I've tried they don't quite hit the right spot and are too close to the anus. They do prevent full insertion and act as a lever for the toy to move in and out against the prostate though.

The handle is sturdy plastic and fits between your cheeks and aids insertion and removal for you or your partner doing the insertion. Overall a nice looking toy and seems to have some good though and intention in the design. The silicone texture on the plug is another departure from the plain smooth abs plastic of the aneros/nexus line of prostate massagers. Aneros did release the Helix Syn, which has a silicone coating, but is smooth in texture.

Janus claims the name comes from "Joyful Anus". Below is a diagram outlining the 3 sizes of Anti-Shock.

    • Ergonomic
    • Futuristic
    • Whimsical / artistic


The anti-shock slides in with little or no resistance using a generous amount of water based lube. It slides right in place and stays in. It will stimulate your prostate when you hit a strong arousal point, but otherwise, you will not really notice it is there, unless you contract your PC muscles.

The device stays put when inserted as it should and will move to stimulate your prostate with muscle contractions/relaxations. A generous amount of a good solid water based lube will aid the process. Maximus is a good lube suggestion for this toy.

The lack of girth may be an issue for those liking a fuller feeling or a larger area on the prostate. For me it did stimulate me some, but not as much as I'd hoped. I think I would have liked a larger head for a wider area of stimulation.
    • Comfortable
    • Easy to use
    • Not very discreet

Care and Maintenance

The Silicone is easy to clean and can be sterilized with 10% bleach solution, soaking in a cup of boiling water, or with antibacterial soap and/or toy cleaner.

You can store in a plastic bag or a cloth pouch if you want to keep dust and lint from sticking to the anti-shock.

It has no power or moving parts, so it can be used in the shower, pool, tub or any location without fear of damage.

You may need to scrub more carefully to clean the grooved/textured areas or just soak in a bleach solution. You could stick it in the top rack of the dishwasher too, but that is more trouble than is necessary.
    • Easy to clean
    • Easy to store


The Anti-Shock comes in a simple clear clamshell plastic case, with diagrams outlining the favorable attributes and sacred angles for stimulating the prostate. The back has a diagram outlining the positive attributes of the anti-shock. There are not even basic instructions showing how to use the anti-shock. The packaging seemed as if it had a slot for instructions, catalog or a DVD, but it was empty inside. A bit odd really. Some detailed instructions for beginners would have been welcomed.

It is not discreet.

    • Minimal
    • Not discreet
    • Recyclable

Personal comments

My personal experiences with the Aneros SGX (ebay clone) were just so so. I later found out that this particular model was designed in Asia for men in the 5'6" and under range, which I assume was why it did not quite hit my spot correctly (I'm 6'2"). I knew this type toy could have better results, because my own experiences with the Evolved Get a Grip were revolutionary to my previous orgasmic experiences. While it has vibrations, I find it equally, if not better, with the vibrations turned off when inserted during sex. The shape just seems perfect for my anatomy. My hope was to find the same stimulation in the Janus or possibly Aneros Helix Syn. I chose the Janus, because it looks like more modern touches were added and it came in choices of widths.

I will say that the Anti-shock was much more comfortable overall than the SGX, which could be downright uncomfortable inside and outside. I'd compare this to be a bit like using the Lelo Bob Pleasure object.


My initial thoughts up on opening the Janus package, were "Wow this is so much smaller than I expected". I expected something longer and thicker. It is not even remotely intimidating if you are a beginner considering one of these. I can only imagine how small and disappointing the 3/4" model must be. I though the 1 1/4" might be too big, but now I am starting to wonder if I made the wrong choice?

It is well made. The silicone has some give and is squishy to the touch. I thought it would be bigger than the SGX, but it seems smaller overall.

I wore mine during sex and it did add stimulation and teased my prostate some. My orgasm was definitely better than a "vanilla" one (no sex aids). However, I have other toys such as the Get a Grip and even the Metal Worx Luv plug that are much more intense, stimulating and enjoyable overall to use. The Get a Grip was my first P-spot toy and it really set the bar high. So high, in fact, that I find the Janus Anti-Shock a disappointment and I really looked forward to trying this one for some time. I was torn between it and the Aneros Helix Syn, but ultimately went with Janus. I don't hate it, but it's not all I had hoped for. Perhaps the largest size would be better. I just can't get excited about using the anti-shock now, when I already have better options with proven results.
    • Aneros
    • Janus
    • Prostate
Follow-up commentary
I have moved on from this one. I much prefer the Aneros Helix, Evolved Love Handle and Aneros Progasm to the Anti-shock. Well made, but the pleasure point was too small to win my heart and body over. I did not get to try the largest size model, which might be an improvement over the medium (1").
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  • Dixiemomma
    Thanks for the great review!
  • RedKyuubi
    Thanks for sharing
  • travelnurse
    Thanks for the review, Is that one really rigid or does it have some flexibility? I hadn't looked into this one.
  • Trysexual
    It's mostly rigid...it is squeezable like silicone (Ego E3), but the shape is rigid...kinda best of both worlds, but I think the head is too small for my taste.
  • Mamastoys
    great review! Thanks for sharing!!
  • Allstars316
    Thanks for the review!
  • britanny0620
    Thanks for the review
  • Beneath The Bed
    Thanks for the review!
  • r00ster
    Thanks for the review
  • SexyRob
    Thanks for the thoughtful review!
  • GONE!
    great review!
  • PassionCpl
    Great job! I just got this, pretty much on the strength of this review. The only thing I don't like is the perineum tab, it pushes in too hard for me. Oh and I'm with you on the Get A Grip (although we bought the identical Love Handle since it was cheaper that day)
  • captainsgirl
    thank you!!
  • explorer7
    really good review, am going to look at the 'get a grip now', thank you
  • Bignuf
    Thanks for a great, and super helpful review.
  • Jordan B
    Awesome review!
  • Trysexual
    Thank you for the kind comments
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