Search

for
Search:

GlossaryLight Exposure

amount of light received by an organism over time

Light Exposure refers to the amount of light that an object or organism receives over a period of time. This can include natural sunlight or artificial light sources. In biological contexts, light exposure can significantly impact various physiological processes, such as circadian rhythms, skin health, and hair growth. For instance, excessive exposure to ultraviolet (UV) light can damage skin cells and hair follicles, potentially leading to conditions like alopecia.

Related Terms

Sort by

Community Join

30 / 980 results

community Sunlight: Does it Stimulate Hair Growth or Hair Loss?

in Research/Science 61 upvotes 7 months ago

The conversation discusses whether sunlight exposure affects hair growth or loss, with mixed anecdotes and theories but no clear consensus. Some suggest moderate sunlight can benefit hair by providing vitamin D, while others doubt its effectiveness compared to treatments like Minoxidil or finasteride.

community Anyone in Pyrilutamide currently?

in Treatment 13 upvotes 1 year ago

User considers trying Pyrilutamide for hair loss and itch relief. Another user shares positive experience with Pyrilutamide, no side effects.

community Why is human evolution like this 😂

in Chat 2 years ago

Why androgenic alopecia affects the scalp rather than other body parts, potential explanations for this phenomenon, treatments available to combat hair loss, and the implications of male attractiveness in modern society.

community Fin year 1 vs year 4. Am I losing ground?

in Progress Pictures 28 upvotes 1 month ago

The conversation is about hair loss treatments, focusing on finasteride and considering a switch to dutasteride due to hairline recession. Users suggest trying minoxidil or dermarolling before switching, while others recommend dutasteride for more aggressive hair loss.

community Can low level of vitamins cause hair loss?

in Research/Science 21 upvotes 11 months ago

The conversation is about whether low vitamin levels can cause hair loss. The consensus is that the user's vitamin levels are normal and unlikely to affect hair loss or the effectiveness of finasteride and minoxidil treatments.

community Oral minoxidil is not good for your health, let’s use research chemicals bought from AliExpress

in Satire 551 upvotes 1 year ago

. This conversation discussed the efficacy of Minoxidil and Finasteride as treatments for hair loss, with a focus on the potential side effects of taking Oral Minoxidil. Some users shared their experiences with both treatments and there was debate over whether they were safe or not.

community Tretinoin can make it worse!!!

in Chat 7 upvotes 1 year ago

Tretinoin may enhance minoxidil's effectiveness for those not responding to minoxidil alone, but it could reduce efficacy for some who are already responding to minoxidil. Tretinoin requires careful use, including skin moisturizing and sun protection due to increased sensitivity.

community Does pyri/kx826 degrade in exposure to bathroom light?

in Treatment 5 upvotes 3 months ago

The conversation discusses concerns about RU58841 degrading when exposed to light and transferring pyri to a dark glass bottle to prevent this. The user keeps the pyri out for only two minutes before storing it in a dark place.

community My Ultimate Hair Regrowth Regimen: Minimizing Systemic Exposure While Maximizing Results

in Research/Science 16 upvotes 2 months ago

The regimen includes using a diluted 5.5% Minoxidil / 0.025% Finasteride solution daily, microneedling weekly, and ketoconazole shampoo twice a week to minimize systemic exposure while maximizing scalp DHT reduction. The goal is to achieve hair regrowth with minimal side effects.

community Any experience with Laduora massage brush

in Technology 3 upvotes 4 months ago

The conversation is about the effectiveness of the Laduora duo massage brush for hair regrowth using vibration and red light, and whether the vitamin gel pods make sense. Specific treatments like Minoxidil, finasteride, and RU58841 are not mentioned.

community A Nuanced Look at Microdosing Topical Finasteride

in Finasteride/Dutasteride 85 upvotes 11 months ago

The conversation discusses using a low dose of topical finasteride to achieve hair benefits with minimal systemic exposure. Users share experiences and opinions on dosing, systemic buildup, and side effects of both topical and oral finasteride.

community Topical finasteride now the safest possible path?

in Finasteride/Dutasteride 72 upvotes 4 months ago

Topical finasteride is considered a safer option for hair regrowth with fewer systemic side effects compared to oral finasteride. Some users report similar efficacy and side effects between topical and oral treatments, while others prefer topical due to reduced systemic exposure.

community Tretinoin Gel + Minox procedure or tips for a minox low responder

in Treatment 8 upvotes 1 year ago

A user has been using minoxidil without noticing improvements and is considering adding tretinoin gel to their regimen before trying RU58841. They seek advice on how to mix and apply tretinoin with minoxidil, including concentration and application frequency.

community Fin 1mg / min foam twice a day 4 months

in Progress Pictures 198 upvotes 1 year ago

Hair loss treatment with Fin 1mg, Min foam twice a day for 4 months. Minoxidil can make hair darker by stimulating melanocytes; keto shampoo also used.

community Topical Finasteride strength discussion

in Research/Science 66 upvotes 9 months ago

The conversation discusses the effectiveness of different concentrations and dosages of topical finasteride on scalp and serum DHT levels, comparing it to oral finasteride and noting the side effects seem to be fewer at lower dosages. Participants shared experiences and referenced a chart indicating similar scalp DHT reduction with 0.025% topical finasteride as with 1mg oral finasteride, but with fewer side effects.

community 4 Months fin 5 months min 3m oral min results

in Progress Pictures 136 upvotes 1 year ago

A user's progress in treating their hair loss with finasteride, minoxidil and oral minoxidil, as well as microneedling. Replies to the post have encouraged the user that they are seeing regrowth from the treatments.

community What's "wrong" with oral minoxidil, exactly?

in Minoxidil 173 upvotes 1 month ago

Oral minoxidil can boost hair growth but may cause side effects like heart palpitations and increased body hair. Many prefer topical minoxidil due to fewer side effects.

community Anyone else realize how many younger guys are balding?

in Chat 262 upvotes 1 month ago

Many younger men are experiencing hair loss due to genetics, diet, stress, and lifestyle changes. Treatments like finasteride and minoxidil are mentioned, with some users noting improvements.

community Kintor (Koshine Biomedica) changed their KX-826 pictures on Amazon to a alleged study picture after backlash over fake pictures

in Product 121 upvotes 3 months ago

Kintor changed their KX-826 pictures on Amazon after backlash over fake images. Users are skeptical about the product's effectiveness and trustworthiness, with some preferring finasteride instead.

community 28M, For the past 8 months on 1.25mg of fin

in Progress Pictures 330 upvotes 4 months ago

A 28-year-old male experienced significant hair regrowth over 8 months using 1.25mg of finasteride daily, without minoxidil or micro needling. He also took vitamin D3, K2, magnesium, and a B100 complex, reporting increased libido as a side effect.

community Why balding gets worse in every generation?

in Chat 81 upvotes 5 months ago

Balding seems to worsen with each generation, possibly due to stress, diet, and environmental factors. The user started treatments like Minoxidil and finasteride.

community 1.5 months in, looking pretty good

in Progress Pictures 358 upvotes 8 months ago

The conversation is about a user's positive experience with hair loss treatment after 1.5 months, using topical finasteride, minoxidil, keto shampoo, and minoxidil shampoo, despite the drying effect of keto shampoo and a change in hair texture due to accutane. Responses include congratulations, personal experiences with hair loss treatments, and a mention of accutane's negative impact on hair.

community 2 Months of 1mg Finasteride and Minox 5% + 0.5 mm DermaRoller

in Progress Pictures 125 upvotes 1 year ago

The user "Emotional_Fun4990" shared their progress after using 1mg Finasteride daily, 5% Minoxidil, and a 0.5mm Derma-roller twice a week for 2 months. They noticed additional hair growth below the hairline and on the neck. Other users provided positive comments and encouragement.

community Been doing daily 3% topical peppermint oil for 6+ months (never used minoxidil). Have had growth that seems as good as minoxidil. Might strenghten the idea that peppermint is a good low-cost treatment, that potentially works by another route than minoxidil.

in Treatment 15 upvotes 2 years ago

The user has been using finasteride, nizoral, microneedling, and recently added 3% peppermint oil to their hair loss treatment, experiencing regrowth similar to minoxidil. They suggest peppermint oil as a potentially effective, low-cost alternative or addition to minoxidil, with the added benefit of a pleasant smell and ease of use.

community Remember to take care of your hair condition.

in Chat 107 upvotes 3 years ago

Taking care of hair condition through the use of shampoo, conditioner, oils and scalp scrubs, as well as advice on using Nizoral and Naturebox Olive Shampoo. Replies also included discussion about whether a bad shampoo could be causing hair loss.

community Finally Scalp Folliculitis-Free after 2 Decades of Suffering

in Treatment 59 upvotes 2 weeks ago

A 37-year-old male resolved scalp folliculitis by adopting a low-histamine diet and taking Vitamin A, Zinc, and Fish Oil, leading to better skin health and thicker hair. He warns about the potential toxicity of excessive Vitamin A intake.

community Does vitamin D deficiency actually cause hair loss? Has anyone actually grew back hair after fixing vitamin d levels?

in Chat 51 upvotes 1 month ago

Vitamin D deficiency can contribute to hair loss, but it is not the sole cause, and supplementation may not always resolve the issue. Treatments like finasteride and minoxidil are recommended for hair regrowth, with vitamin D and other supplements providing additional support.

community Everyone is ignoring that plasma finasteride levels are 100x lower with topical compared to oral.

in Research/Science 127 upvotes 4 months ago

Topical finasteride results in plasma levels 100 times lower than oral finasteride, potentially reducing systemic side effects. Users report similar efficacy with fewer side effects, suggesting a preference for topical application.

community 6 Month results video (47 y/o, 46 when I started). Various products, discontinued due to scalp irritation and eventually landed on Fin/Min spray starting at week 6. Dermarolled 0.50mm once per week.

in Progress Pictures 342 upvotes 4 months ago

A 47-year-old user shared their 6-month hair loss treatment results using a Fin/Min spray and weekly dermarolling. They experienced scalp irritation with other products but found success with the Hims Fin/Min spray, noting improvements around the 5th month.

community What are these spots on my scalp

in Treatment 51 upvotes 4 months ago

A user noticed non-itchy, non-bleeding spots on their scalp while experiencing hair loss. Replies suggest the spots are likely sunspots or liver spots and recommend seeing a dermatologist; hair loss is attributed to male pattern baldness.