Search
for

    Glossary2D:4D ratio (second-to-fourth digit ratio)

    relative length of index to ring finger

    The 2D:4D ratio, also known as the digit ratio, refers to the comparative length of the second digit (index finger) to the fourth digit (ring finger). This ratio is often used as a biomarker for prenatal hormone exposure, with a lower ratio (shorter index finger relative to the ring finger) typically indicating higher exposure to testosterone, and a higher ratio indicating higher exposure to estrogen. This measure has been linked to various biological and behavioral traits, including susceptibility to certain diseases and conditions.

    Related Terms

    Sort by

    Community Join

    30 / 1000+ results

      community 4 month progress. Oral fin and topical min

      in Progress Pictures  1414 upvotes 1 week ago
      A user shared their 4-month hair regrowth progress using oral finasteride and topical minoxidil, reporting no side effects and positive feedback on their appearance. The post sparked debate, with many users doubting the authenticity of the photos, while others congratulated the user on their impressive results.

      community Should I get transplant #4 or just shave my head?

      in Transplants  168 upvotes 5 months ago
      A 36-year-old considering a fourth hair transplant is advised to either shave his head or use a hair system due to poor results from previous transplants and late medication use. He plans to consult top surgeons and adjust his current treatments, including finasteride and minoxidil.

      community 11 months on fin only. Regrowth + thickness

      in Progress Pictures  572 upvotes 1 year ago
      A user reported hair regrowth and increased thickness after 11 months using finasteride 1mg, taken 3-4 times a week, with noticeable improvement starting around the third or fourth month. No side effects were mentioned, and the user is considering reducing the dosage to find the minimum needed to maintain results.

      community FINASTRIDE and switch to DUTASTRIDE, my experience

      in Progress Pictures  138 upvotes 4 months ago
      The user shared their experience with Finasteride and Dutasteride for hair loss. They initially had success with Finasteride but switched to Dutasteride after experiencing shedding, which continued, and are now considering a hair transplant.

      community Decades Update: age 23 to 25 and age 39 to 41

      in Progress Pictures  714 upvotes 1 week ago
      The user started using finasteride at age 23, stopped at 30 to start a family, and resumed at 39 with minoxidil, seeing positive results both times. They successfully had four children after stopping finasteride, noting changes in sperm quality and some side effects upon resuming the medication.

      community Watching my 23 y/o self deciding to do nothing about his thinning hair

      in Satire  1034 upvotes 2 years ago
      Hair loss and the various treatments available, including finasteride, minoxidil, dutasteride, dermarolling, RU58841, mesotherapy, Rogaine, and scalp massages. The discussion also includes regret for not starting treatment earlier and advice to start early in order to avoid further balding.

      community A concise, easy-to-understand post on Androgenic Alopecia theory and its practical applications

      in Research/Science  92 upvotes 2 years ago
      The mechanism of Androgenic Alopecia and practical applications of treatments like Minoxidil, Finasteride, RU58841, dermarolling, scalp massages, anti-fungals, progesterone, estrogen, PPAR-γ activators, reducing oxidative stress, and scalp exercises. It explains why DHT is important in AA and how other factors might be involved such as hypoxia, increased DKK-1 expression, morphological changes to the scalp, skull growth during childhood/puberty, and blood flow.

      community Hey brothers, this post is about my clinical depression with mpd

      in Update  9 upvotes 1 year ago
      A 21-year-old experiencing hair loss and depression is planning to start finasteride treatment and is asking for others' experiences. Another user responds positively, stating that finasteride has helped alleviate their depression caused by hair loss.

      community Dutasteride Mesotherapy Spain 1st session

      in Finasteride/Dutasteride  7 upvotes 2 years ago
      A user had their first dutasteride mesotherapy session in Spain to recover hair on the temple area, with plans for monthly sessions and continued use of topical Minoxidil. If no results are seen in 8 months, they will switch to oral Minoxidil and finasteride.

      community 5.5 months (Min 2 times /fin 1.25 1 time) daily //derma 1 every week some supplement and Sometimes I use ketoquinazole shampoo The real results from the beginning of the tenth image. 23 y

      in Progress Pictures  396 upvotes 8 months ago
      The user experienced improved hair growth using Minoxidil twice daily, finasteride 1.25mg once daily, weekly dermarolling, supplements, and occasional ketoconazole shampoo for 5.5 months, but noticed hair shedding again after switching types of Minoxidil. Despite returning to the original Minoxidil, the user's hair condition worsened and shedding continued.

      community 25 years on finasteride - my experience

      in Finasteride/Dutasteride  870 upvotes 5 days ago
      A long-term finasteride user experienced side effects like sexual dysfunction, dry eyes, muscle weakness, and brain fog, which improved when they stopped the medication. They decided to stop finasteride again, questioning if maintaining hair was worth the negative impact on their well-being.

      community 3 years of finasteride and minoxidil

      in Progress Pictures  1251 upvotes 1 year ago
      This conversation is about a user who used finasteride and minoxidil over the course of three years to treat their hair loss, and they achieved great results. They experienced severe shedding when first beginning treatment but eventually saw very noticeable results after one year.

      community Hairloss Stack. Focused on density and Hairline

      in Progress Pictures  10 upvotes 6 months ago
      The user is using a combination of RU58841, Stemoxydine, RevivHair Serum, hair growth oil, topical Minoxidil, Alfatradiol, oral Minoxidil, and Finasteride to treat hair loss. They report no side effects from oral Minoxidil and Finasteride after 7 months of use.

      community Topical Finasteride update by H&W

      in Finasteride  28 upvotes 7 years ago
      The conversation discusses using topical finasteride for hair loss, with concerns about its safety around family members, especially pregnant women and infants. One user plans to try topical finasteride due to side effects from the pill.

      community 10 Days Post-Op: Hair Transplant Results and Experience

      in Progress Pictures  505 upvotes 7 months ago
      A user shared their positive experience with a hair transplant at Dr. Resul Yaman Hair Clinic in Istanbul, including before and after photos. They are considering taking oral Minoxidil post-operation but are avoiding Finasteride due to side effects.

      community Results so far on Finasteride and biotin

      in Progress Pictures  144 upvotes 2 years ago
      The conversation is about someone experiencing significant hair regrowth after 23 days on Finasteride and Biotin, with others suggesting additional treatments like Minoxidil and microneedling. Some doubt the speed of hair growth, while others believe Biotin isn't contributing to the results.

      community I am actually regrowing my hairline without minoxidil or finasteride (mechanical stimulation)

       128 upvotes 6 years ago
      Regrowing hairline without the use of Minoxidil or Finasteride, and instead using mechanical stimulation such as Derma Roller, Nizoral, Zinc Pyrithione, Scalp Massage, Scalp Exercise, Fish Oil and other topical solutions. It is cautioned that there are risks associated with not using medically-prescribed treatments, but it is suggested to consider mechanical stimulation in addition to those prescribed treatments.

      community 1.5 Year - Bad Results (HT, FIN, MINO, PRP, etc)

      in Progress Pictures  64 upvotes 4 months ago
      A user shared their disappointing results after 1.5 years of hair treatments, including a hair transplant, finasteride, minoxidil, PRP, vegan shampoo, and more. They are considering switching to dutasteride, oral minoxidil, and improving their microneedling routine.

      community Nothing's working, I feel depressed, also hopeless for the first time

      in Update  104 upvotes 2 years ago
      A user's experience with hair loss treatments, including Finasteride, Minoxidil, Nizoral Shampoo, Rosemary Oil, Vitamin D, Biotin, Vitamin C, Zinc and Dermarolling, that have not been successful over the past 14 months. Other users gave advice on how to cope with the issue, such as exercising, changing mindset, and shaving their head.

      community Black Hair Regrowth Process Timeline

      in Progress Pictures  70 upvotes 2 years ago
      Treating Black/ethnic hair loss with a combination of Minoxidil, finasteride, Nizoral shampoo and derma pen treatments, as well as occasional Jamaican Black Caster Oil use. The user documented their progress over the course of 3.5 months, showing improvement in hair growth.

      community progress 5 months on fin and min

      in Progress Pictures  28 upvotes 1 day ago
      The user is experiencing significant hair growth improvement after 5 months using finasteride, topical minoxidil, microneedling, and ketoconazole shampoo, with no side effects except less body hair. The routine includes daily oral finasteride, twice-daily topical minoxidil, weekly microneedling, and starting ketoconazole shampoo.

      community 22 | ~34 Months Finasteride Update

      in Progress Pictures  818 upvotes 5 months ago
      A user shared their 34-month update on using finasteride for hair loss, noting they maintained regrowth even after stopping minoxidil a year ago. Other users shared similar experiences and expressed admiration for the results.

      community 22M - 2 months progress on oral Fin/Min

      in Is this regrowth?  1052 upvotes 3 months ago
      A 22-year-old shared his 2-month progress using oral Minoxidil (3mg) and Finasteride (1.1mg) for hair regrowth, showing noticeable improvement despite initial side effects like increased heart rate and headaches. Users discussed the effectiveness, side effects, and expectations of these treatments, with some expressing skepticism about the rapid results.
    Next page →