No T-booster
30%
Average testosterone decline in men from age 30 to 60
Harman et al., J Clin Endocrinol Metab, 2001
The Science
TAKE A LOOK INSIDE REWIND’S NATURAL P.H.D. FORMULA
21 Again Rewind was built from research, not supplement-label guesswork. Every active ingredient is selected for a specific biological role and dosed to match the levels used in published human studies. No synthetic testosterone. No shortcuts. Only natural, clinically-dosed ingredients.
With T-booster
20.5%
Total Testosterone increase with Shilajit (men 45-55)
Pandit et al., Andrologia, 2016
With T-booster
20.5%
Total Testosterone increase with Shilajit (men 45-55)
Pandit et al., Andrologia, 2016
NATURAL STACK + CLINICAL LEVEL DOSES
A POTENT NATURAL FORMULA
500MGTongkat Ali Root
Supports free testosterone, libido, muscle development, mood, and drive.
Supports free testosterone, libido, muscle development, mood, and drive.
700MGAshwagandha KSM-66(R)
Helps reduce stress and cortisol while supporting testosterone, vitality, and performance.
Helps reduce stress and cortisol while supporting testosterone, vitality, and performance.
40MGGinseng Extract
Supports energy, circulation, endurance, libido, and overall male vitality.
Supports energy, circulation, endurance, libido, and overall male vitality.
700MGPine Pollen Extract (10:1)
Rich in natural phyto-androgens that support hormone balance, energy, and stamina.
Rich in natural phyto-androgens that support hormone balance, energy, and stamina.
350MGBulbine Natalensis
Supports testosterone, libido, and strength by optimizing male hormone pathways.
Supports testosterone, libido, and strength by optimizing male hormone pathways.
500MGShilajit Powder
Delivers bioactive minerals and fulvic acids that support energy, recovery, and testosterone.
Delivers bioactive minerals and fulvic acids that support energy, recovery, and testosterone.
100MGMagnesium Glycinate
Supports sleep, recovery, T production, and male metabolic health.
Supports sleep, recovery, T production, and male metabolic health.
100MGDiindolylmethane (DIM)
Supports healthy estrogen metabolism for balanced testosterone and clearer energy.
Supports healthy estrogen metabolism for balanced testosterone and clearer energy.
01
THE MECHANISMs
four pathways. one formula.
Rewind works across four biological pathways simultaneously. Because testosterone is not controlled by one switch. It is controlled by a network of stress hormones, nutrient status, binding proteins, pituitary signaling, testicular function, and recovery.
That's why both the ingredients and the doses matter.
01
Free Testosterone + Androgen Support
Key Ingredients:
Tongkat Ali, Pine Pollen, DIM
Free testosterone is the active signal.
Total testosterone matters, but only unbound testosterone can interact with androgen receptors. Tongkat Ali supports healthy testosterone status and libido, while Pine Pollen provides naturally occurring plant sterols.
Studies: Tambi 2012 - D'Adamo 2004 - Zu 2021
02
STRESS + CORTISOL CONTROL
Key Ingredients:
Ashwagandha KSM-66, Ginseng
Stress is not just a feeling. It is chemistry.
Chronically elevated cortisol can interfere with the HPG axis — the brain-to-testes signaling system that regulates natural testosterone production. Ashwagandha supports a healthier cortisol response, while Ginseng helps the body adapt to physical and metabolic stress.
Studies: Wankhede 2015 · Lopresti 2019 · Lee 2022
03
ENERGY + PERFORMANCE
Key Ingredients:
Tongkat Ali, Pine Pollen, DIM
Male performance starts at the cellular level.
Testosterone production, stamina, and recovery all depend on efficient energy metabolism. Ginseng supports nitric oxide and circulation, Shilajit supports mitochondrial function, and Magnesium helps fuel muscle, nerve, and metabolic processes involved in performance.
Studies: Pandit 2016 · Cinar 2011 · Jang 2008
04
HORMONE BALANCE + RECOVERY
Key Ingredients:
DIM, Magnesium Glycinate, Bulbine Natalensis
Male hormones work best in balance.
Testosterone does not operate alone. Estrogen metabolism, sleep quality, inflammation, and recovery all affect how men feel and perform. DIM supports healthy estrogen pathways, Magnesium supports sleep and recovery, and Bulbine supports male hormone pathways.
Studies: Dalessandri 2004 · Cinar 2011 · Yakubu 2010
the Rewind timeline
Rewind helps support your body’s natural testosterone production, energy, and drive in 90 DAYS.
thinking about trt? Think again.
21 AGAIN rewind is
built different
TRTHormone Injections
Other T-Boosters
Formula
Natural Plant Based
Synthetic Hormones
Natural Ingredients
Side Effects
None
Acne, Poor Sleep, Shrinkage, Infertility
Natural Function
Activated
Stops Natural Hormone Function
Convenience
Once Daily
Budget Friendly
Clinical Doses
Third Party Tested
N/A
Reversability
Lifetime Treatment
21 AGAIN FORMULATOR & FOUNDER
meet jarret stopforth, phd
After hitting 40 and feeling his energy, drive, and confidence fade, Jarret Stopforth set out to create what countless “natural testosterone boosters” failed to deliver; real results. Three years of research and testing plant based ingredients led to the breakthrough formula behind 21 Again Rewind.
Within 30 days, he felt stronger, leaner, and more alive. When friends experienced the same transformation, 21 Again was born. Today, it’s a science backed, all natural supplement designed to help men reclaim their youthful energy, confidence, and vitality; basically, to feel 21 Again.
Ready to Rewind
your biology can work
for you again.
Dr. Stopforth built this for himself. Give your body what the research actually supports, at the doses that produced real results in clinical trials.
Feel Like Your Old Self Again in 90 Days or Your Money Back
We believe in the Rewind formula. Use it consistently for 90 days and if you do not feel the difference, you get your money back. Try it now!
FREQUENTLY ASKED QUESTIONS
What ingredients are in 21 Again Rewind?
A blend of 12 natural, clinically dosed ingredients including Tongkat Ali, Ashwagandha KSM-66, Zinc, Boron, Panax Ginseng, Fenugreek, DIM, Pine Pollen Extract, Vitamin D3, Magnesium, Astragalus, and Bulbine Natalensis.
Is 21 Again safe to take?
Yes. Each batch is tested for purity, potency, and safety.
Does 21 Again contain allergens?
No dairy, soy, gluten, shellfish, nuts, or artificial fillers.
Is 21 Again third party tested?
Yes. Every batch is tested by outside labs.
Is 21 Again made in a GMP certified facility?
Yes. Production follows strict GMP standards.
Are the ingredients natural?
Yes. Everything is plant based, mineral based, or naturally occurring. No synthetic hormones.
Is 21 Again FDA approved?
Supplements do not receive FDA approval, but 21 Again is made in an FDA inspected and GMP certified facility.
Is 21 Again safe for long term use?
Yes. The ingredients are well studied for long term use.
Does 21 Again contain banned substances?
No. Nothing on major banned substance lists. If competing professionally, check your federation rules.