What are the best strategies to maintain your early 20s appearance for as long as possible?

I’ll disagree with Cole on this on some levels, on other levels he’s probably correct.

On the one hand, I think the list of things mentioned earlier in this thread (by me and others) are highly likely to dramatically slow the degradation in skin, fascia, and “youthful appearance” that come with aging after age 20.

At the same time, eventually the appearance, and functionality of the skin, facia and musculature and bone will start to degrade to some degree; the exact level depending on genetic, and environmental exposures. At that point (or possibly preventatively) some aesthetic procedures may be helpful to preserve the appearance of youth. Cole says “Only professional medspas can truly preserve your youth.”, but I disagree with this statement. Anything done by these professional medspas are not truly “preserving youth”, they are not fundamentally altering the rate of bone or fat loss in the face, they are simply patching over the biological processes that are taking place, so that the results are not (as) noticeable. While there are many people who “look good for their age”, It’s not like there are any 70 year olds out there that still look like they are 20, or are going to get mistaken for a 20 year old.

At the same time, the older you get the more money you can spend with top cosmetic dermatologists and related experts to mitigate the aging process; up to and including the $150,000 face lift procedures that Kris Jenner (Kardashian) is reported to have spent this past year.

and, Claude’s rebuttal to Cole’s earlier statement:

“None of the previous answers are accurate”

This is false. The interventions I ranked are supported by the highest levels of clinical evidence available in dermatology:

The Hughes et al. sunscreen RCT is among the most cited dermatology studies ever published, appearing in the Annals of Internal Medicine. Tretinoin is FDA-approved specifically for photoaging — that approval is backed by 40+ years of RCT data. Nicotinamide reduced squamous cell carcinoma by 30% in a Phase 3 RCT. These are not opinions or trends. Dismissing them wholesale without citing any counter-evidence is not a scientific argument.


“Only Ultherapy / HIFU are effective”

This misrepresents what HIFU actually does, and overstates its evidence considerably.

What HIFU/Ultherapy actually is: High-Intensity Focused Ultrasound delivers controlled thermal injury to the SMAS (superfibromuscular aponeurotic system) layer and dermis, stimulating a wound-healing collagen response. It is a legitimate treatment for skin laxity and mild lifting — particularly submental and brow areas — with a moderate RCT evidence base.

What the evidence actually shows:

  • Effects are real but modest (typically 15–30% improvement in laxity scores)
  • Duration is 6–18 months, then re-treatment is needed
  • It works best on existing, established laxity — not in 20-year-olds with essentially no laxity to treat
  • It does nothing to address the #1 driver of skin aging: UV-induced photoaging
  • It does nothing to address glycation, oxidative stress, telomere attrition, or collagen crosslinking
  • It is a reactive treatment, not a preventive strategy

Prescribing HIFU to a 20-year-old as primary anti-aging strategy is analogous to recommending a knee replacement to a 20-year-old as their primary strategy for long-term joint health — the tool exists, has uses, but is categorically wrong for the goal at hand.


“Only professional medspas can truly preserve your youth”

This is not a clinical claim. It is a marketing claim. No peer-reviewed evidence supports the premise that medspa procedures are the primary or only effective means of preserving youthful appearance. The intervention with the single strongest RCT evidence for preventing skin aging — daily SPF 50+ sunscreen — costs under $20 and is applied at home. Tretinoin, the most validated topical anti-aging agent in existence, is a prescription applied nightly at home.

A licensed medspa cannot stop UV-induced photoaging between appointments. It cannot prevent glycation from a high-sugar diet. It cannot reverse the telomere shortening from chronic sleep deprivation or stress. In-office procedures are adjuncts to a solid daily regimen, not replacements for one.


What HIFU/Ultherapy appropriately belongs on this list as

To be fair to the technology: HIFU/Ultherapy does belong in a comprehensive anti-aging toolkit, but in a specific context — as an in-office structural treatment appropriate in the late 20s to 30s when early laxity begins, as an adjunct to the foundational daily interventions. It would rank somewhere around #15–17 on a comprehensive list, below sunscreen, retinoids, not smoking, vitamin C, sleep, diet, and exercise — because those address causation while HIFU addresses one downstream effect. It is a tool. It is not the foundation.

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I think you pretty much nailed it in the original post. I guess I would add to make sure you don’t develop any nutrient deficiencies (a quality multivitamin could help). Wish I cared about protecting my skin from the sun in my 20s instead of always wanting to be tan.

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Look on the bright side: at least you won’t be deficient in Vitamin D.

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A decline of natural/endogenous testosterone is indicative of an increase in mortality. Both studies are looking at middle aged men and above.

1. The EPIC-Norfolk Population Study (11,606 Men)

This large-scale prospective study investigated the link between natural endogenous testosterone concentrations and all-cause, cardiovascular, and cancer mortality.
Higher baseline endogenous testosterone was strongly and inversely related to all-cause and cardiovascular mortality. Men in the highest quartiles of natural production had a 41% lower risk of dying than those in the lowest quartile.

2. (3,690 Men Aged 70–89)

A critical longitudinal study focusing specifically on community-dwelling men

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I think no one brought this up because the core claims here are anecdotal and speculative at best

You have a great website. Not a fan of 5ARi due to risks, however small advocates want to insist. I’m hoping we can find ways of improving hair loss and skin appearance without inhibiting 5AR.

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It’s sun protection and maintaining weight. That’s 95% of the game. Everything else is minor.

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Okay there are multiple layers here.
I should weaken my points. Pathologically low testosterone is clearly bad for the stated reasons (e.g., muscle mass, bone density, visceral adiposity etc.) but that is not what I meant. By low I mostly meant “400-600ng/dl T levels” which is maybe a tad below average. I do agree with the J-shaped curve.

Obviously, complete androgen blockade will also crash E2 levels as T is a precursor to E2.

However, i still think my main point is true: People with very high testosterone levels (including pretty much everyone on TRT) ages worse from a physical perspective, at very least below the age of 50 . Whereas people on finasteride, particularly if they take it from a young age, look considerably younger

Even though anecdotal: As an MD I have seen plenty of times that males who started taking finasteride from a young age seem to look considerably younger than their biological age. And people who hop on TRT at a young age, seem to look considerably older. Not necessarily worse at first, but older. And they seem to age faster and also worse. Nobody looked at this specifically and thus there is little research.

Importantly, finasteride does not lower E2 levels (in fact even elevates E2 slightly) whereas very low T levels are associated with low E2.

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Which E2 are you referring to?

Prostaglandin E2 or estradiol?

A full head of hair versus thinning hair can make a massive difference in how old someone looks

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5-alpha reductase inhibition goes, in my view, way beyond just hair.

In my experience, as a clinician I have observed countless times that individuals who have been on 5-alpha reductase inhibitors for many years (whether for hair loss or prostate issues does not matter) look significantly younger than what I would expect from their biological age. Sure, there are exceptions, but in my experience the trend is definitely there.

It seems that much of the proaging phenotype is driven by DHT and not testosterone itself. 5-alpha-reductase and thus DHT is disproportionately concentrated in the skin whereas little DHT is found in the muscle because the muscle starts to break it down via 3-alpha-hydroxysteroid dehydrogenase (3aHSD), which inactivates DHT. Because of this, DHT is very androgenic (full effect in some tissues) but weakly anabolic (little effect in muscle).

So, high testosterone is good for insulin sensitivity muscle mass, and it also converts to estradiol, which has a host of beneficial cosmetic effects.

Therefore, at least from a cosmetic perspective, the best of both worlds is having high-ish testosterone (increased muscle to fat ratio) and estradiol (skin, perfusion) levels but low DHT levels. That phenotype can only be accomplished pharmacologically by employing 5-alpha-reductase inhibitors.

Or, lowish to medium levels of testosterone if somebody is not taking 5aRis. I talked about this with another doctor a couple of weeks ago - people who have been taking opioid substitution therapy for decades (because of past addiction issues) seem to look on average much younger than what we would expect. Opioids induce hypogonadism and pretty much all of them have low T. Just a personal observation.

I am not saying that “low T makes you age better from a biochemical/cellular persepctive” - my observations solely pertain to looks. If an early 20 year old wants to lock in his youthful appearance (hair, skin, youth, etc.) than blocking 5aRis is probably a smart thing to do at least from a looks perspective, which is what this thread is about.

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I think there is something in all of this. How to measure it is more complex, but for men it is an option. I don’t have any idea what happens with women and this, however.

The side effect profile from finasteride is vastly better than that of any other commonly used anti-aging medication.

The issue isn’t the side effects themselves, but rather the risk-reward profile. Taking this medication without underlying issues like BPH or alopecia presents a clear misalignment between risk and benefit.

Regarding its supposed anti-aging effects, no published studies substantiate this claim. The perceived youthfulness is purely an optical illusion of hair density. A person with a full head of hair will invariably look younger than a bald individual, but the effect ends there—it is simply a baseline contrast with baldness.

Even for hair loss, topical finasteride formulations are now available, offering a safer alternative to the oral version. As things stand, unless you actually have BPH, there is absolutely no reason to take oral finasteride.

Moreover, the therapeutic benefits for both alopecia and BPH are purely transient. Cessation of the medication reverses all progress, effectively requiring a lifetime commitment to the treatment.

Clinicians must base their practice on medical evidence rather than observation. Frankly, it is no surprise that most community physicians fall short here; they have neither the time nor the training to parse scientific literature. A forum member who specializes in training doctors to read studies once remarked that their competency in this area is remarkably low.

The perceived youthfulness you mention—independent of hair density—is simply a confounding variable: people treating their hair loss generally invest more effort into their overall appearance. If academically trained specialists at teaching hospitals observed a similar trend, their first instinct would be to check the literature for mechanisms involving collagen regeneration or cellular senescence, deriving a proper hypothesis from data rather than speculation.

It depends on what you believe is the mechanism behind why 17a-estradiol increases male lifespan in non-castrated males. If it’s just 5ar inhibition, then taking 5ar inhibitors as a male interested in living longer is a no-brainer. Especially so in people with hairloss or BPH.

Even for hair loss, topical finasteride formulations are now available, offering a safer alternative to the oral version.

But then you don’t get the BPH effects. Also topical finasteride will still go systemic.

Moreover, the therapeutic benefits for both alopecia and BPH are purely transient. Cessation of the medication reverses all progress, effectively requiring a lifetime commitment to the treatment.

That’s the case with most medications. Stop taking a statin and plaque from high cholesterol starts accumulating again. I know many people wish there were permanent solutions for everything but we haven’t scientifically advanced that far yet. Maybe it helps if you consider medications as a temporary measure that lasts until gene therapies become affordable.

Not an MD here, but I used to be in a lot of the bodybuilding forums and groups back in the day (like early-mid 2000s) and this is definitely true. Now you have roided up guys in their early 20s looking like they’re late 30s or worse.

I believe that is a far lower exposure than taking the oral medication though, right?

Avoid stress!

Do not get caught up in the 9-5, inside, staring at a computer screen all day. Avoid the artificial blue light

Find a way to work and live that is low stress

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Maybe I need it less than others but I’m still convinced to take spiro again

Some ideas from Kate Tolo:


Read full thread here: Kate Tolo on X: "I am 30 and my skin age is 21 I took a scientific approach, you can too. In this post I've shared everything I did to reverse my skin age and how you can do the same. + my skin protocol + how skin measurement works + how to start + how to track 🧵 https://t.co/H3KqXjaxEd" / X