Is Hyperbolic Stretching 4.0 worth it?
Worth a look (6.1/10). Hyperbolic Stretching is a library of short video routines built around the contract-relax method, a genuine stretching technique with decades of research behind it. The sales page dresses this up as a hidden 'reflex hack' that produces instant, permanent flexibility, which oversells what the underlying research actually shows. There is no study of this specific video program, the founder's credentials are not given, and the '500K+ members' figure cannot be checked. For $47 with a 60-day ClickBank refund, the financial risk is low even if the marketing runs ahead of the science.
What we liked
- One-time $47 payment, no recurring billing found on the order form
- Built around contract-relax stretching, a technique with real supporting research
- 60-day ClickBank refund window, stated as no-questions-asked on the sales page
- No special equipment required, and routines are short (8 minutes)
- Named founder and company in the copyright line
What we didn't
- No study on this program itself, only general research on the stretching technique it uses
- "Instant" and "on command" relaxation language overstates what the cited-style research shows
- $197 strikethrough price with no evidence it was ever the real price
- "500K+ members" figure cannot be verified
- Order-bump add-ons appear at checkout on top of the $47 price
What is Hyperbolic Stretching 4.0?
Hyperbolic Stretching is a digital video course, currently marketed under the name 'The FlexTense Method', that teaches flexibility and mobility routines built around the contract-relax stretching technique: pressing a limb against resistance for a few seconds before easing it further into a stretch. The sales page frames this as switching on an 'inverse stretch reflex' that instantly relaxes tense muscles, as opposed to the 'stretch reflex' that supposedly keeps people stiff.
The program is organized as 8-minute follow-along routines covering morning and evening mobility flows, hamstrings, hip flexors, front and side splits, back bends and upper body flexibility, plus a PDF combining routines by goal. It includes two bonus sections (dynamic stretching and athletic warm-ups, and wall-bar stretching) and says buyers get lifetime access and ongoing support through Facebook, Instagram and email. No equipment is required beyond pillows, a towel and a broomstick for some routines.
The site names Adam Kubinyi as the founder and lists Virtuan s.r.o. as the company in the copyright line. It is sold through ClickBank, which appears on the card statement and handles the refund.
Format: Online video course, 8-minute daily routines, lifetime access, one-time purchase. Sold by: Virtuan s.r.o. (sold through ClickBank).
What do you get with Hyperbolic Stretching 4.0?
This is a digital product, so there is no label to check. Here is what the sales page says you receive.
- 8-minute video routines from beginner to advanced, covering bed flows, hamstrings, hip flexors, front and side splits, back bends and upper body flexibility
- A PDF of routine combinations organized by goal (splits, back bends, shoulders)
- Bonus: dynamic stretching and athletic/warrior warm-up routines
- Bonus: wall-bar stretching routines
- Lifetime access and stated ongoing support through Facebook, Instagram and email
Do the Hyperbolic Stretching 4.0 claims hold up?
"The inverse stretch reflex causes [muscles] to instantly relax" and lets you "activate this reflex on command"
Contract-relax (PNF-style) stretching is real and studied, and a 2012 review in the Journal of Human Kinetics lists plausible mechanisms (including autogenic inhibition) behind its effect on range of motion. That review is careful to call the mechanisms plausible and calls for more research, which is a more cautious framing than the page's 'instant' and 'on command' language.
500K+ members worldwide
No source, sales figure or third-party data backs this number on the page. It cannot be verified from anything we could check.
"Only $197 $47 TODAY!"
The $197 strikethrough price is presented as the regular price, but nothing on the page shows the course ever sold at $197. This is a common markdown-anchor pattern used to make $47 look like a bigger discount than it may be.
"Backed By Full 60-Day Money Back Guarantee"
Confirmed on the ClickBank order form, which states the standard 60-day return or replacement window for the product.
How much does Hyperbolic Stretching 4.0 really cost?
| Option | Total | Per month | Shipping |
|---|---|---|---|
| Full program, lifetime access | $47 | One-time | Instant online access |
The program is a single one-time payment of $47, discounted from a listed $197. There are no bottles or subscriptions: paying once unlocks lifetime access to the videos and bonuses.
At checkout on the ClickBank order form, three optional order bumps appear: a printable routine chart pack for $14, an additional stretching program for $27 and a meal plan guide for $19. None of these are required to access the core course, and skipping them keeps the total at $47.
Compared with in-person stretching classes or a mobility coach, $47 for lifetime access to a video library is inexpensive, and the 60-day ClickBank refund limits the downside if the routines do not suit you.
Nothing is shipped. The videos and PDFs are unlocked online right after payment.
Can you get a refund on Hyperbolic Stretching 4.0?
60-day window. The sales page advertises a 60-day money-back guarantee with no questions asked. The ClickBank order form confirms ClickBank's standard 60-day return window, and refund requests go through ClickBank support.
Step by step: find the ClickBank receipt email, look up the order at clkbank.com and ask for a refund in writing. Our ClickBank refund guide covers returns, extra offers and auto-ship.
Which red flags did we find?
- Unverifiable membership count"500K+ members" appears repeatedly with no source or evidence behind it.
- Anchor-price discountThe page shows $197 crossed out next to the real $47 price, with no evidence the course ever sold at $197.
- Science oversimplifiedThe real research on contract-relax stretching describes several possible mechanisms studied cautiously, not a simple on/off 'reflex switch' that works instantly and permanently.
- No credentials for the founderAdam Kubinyi is named as founder, but no certification, degree or professional background is given to support the program's exercise science claims.
- Checkout order bumpsThe ClickBank order page offers add-ons (a routine chart pack for $14, a stretching program for $27, a meal plan for $19) at the point of payment, on top of the $47 headline price.
Who should buy Hyperbolic Stretching 4.0, and who should skip it?
It may suit you if
- You want a structured, low-cost home mobility routine and are comfortable trying contract-relax stretching techniques on your own.
- You are fine with marketing that overstates the science, as long as the underlying exercises are reasonable and the price is a one-time $47.
- You have no equipment beyond a floor, bed, pillows, a towel and a broomstick.
Skip it if
- You have a joint injury, hypermobility condition or are recovering from surgery; check with a physical therapist before starting an intensive stretching program.
- You want a program validated by a study on that exact product rather than general research on the technique it borrows from.
- You dislike checkout pages with extra paid add-ons and want a single, flat price with nothing else offered.
How we assessed this
We did not buy or use Hyperbolic Stretching 4.0. This review audits the offer as it appeared on September 28, 2026. We read:
- The Hyperbolic Stretching / FlexTense Method sales page (hyperbolicstretching.com/fullpower) reached through our ClickBank link
- The ClickBank order form for the product, including its price, bump offers and stated return window
- The FAQ, guarantee and footer sections of the sales page
- Hindle et al. 2012, a review of PNF stretching mechanisms and effects on range of motion, on PubMed
Sources
- Hindle et al. 2012, Proprioceptive Neuromuscular Facilitation (PNF): Its Mechanisms and Effects on Range of Motion and Muscular Function (PubMed)
- ClickBank customer support (orders and refunds)
Scores: evidence 4.5, price 7.5, refund 7.5, transparency 5. How we score.
Hyperbolic Stretching 4.0 FAQ
Is Hyperbolic Stretching legit?
It is a real digital video course sold through ClickBank with a 60-day refund, so it is not a scam that takes your money for nothing. The concern is the marketing, which frames a real stretching technique as an instant, on-command 'reflex switch', a stronger claim than the underlying research supports.
How much does Hyperbolic Stretching cost?
It is a one-time payment of $47, discounted from a listed $197 with no evidence that price was ever charged. Lifetime access is included, and the checkout page offers optional paid add-ons you can skip.
Does the contract-relax stretching method actually work?
Contract-relax (PNF-style) stretching has real research behind it, with reviews describing several possible mechanisms for how it increases range of motion. That research is more cautious than the sales page's claim of an instant, permanent effect.
How do I get a Hyperbolic Stretching refund?
Find your ClickBank receipt email, go to clkbank.com, look up the order by number or email, and request a refund within the 60-day window stated on the order form.
Do I need any equipment for Hyperbolic Stretching?
No special equipment is required. The sales page says you will want two pillows, a bath towel and a broomstick for some routines, and most exercises can be done in bed or on the floor.
