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Glossary Systemic Absorption

substance enters bloodstream and spreads throughout the body

Systemic absorption refers to the process by which a substance, such as a medication or chemical, enters the bloodstream and is distributed throughout the body. This can occur through various routes, including oral ingestion, inhalation, or through the skin. Once in the bloodstream, the substance can exert its effects on different organs and tissues, which is crucial for treatments that need to reach systemic circulation to be effective.

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community Has any data on systemic absorption of pyrilutamide been published?

1 upvotes 4 months ago

Pyrilutamide shows minimal systemic absorption with low plasma levels and no accumulation, suggesting it's unlikely to cause systemic side effects. However, full results are not yet published in scientific journals.

community Are we underestimating systemic absorption with homemade/generic Topical Fin? (HPCH vs. PG/Ethanol formulations)

5 upvotes 7 months ago

Topical finasteride may have higher systemic absorption and lower efficacy when using a Propylene Glycol/Ethanol formulation compared to the hydroxypropyl chitosan (HPCH) formulation. The safety profile of topical finasteride relies heavily on the HPCH formulation, and using standard solutions might lead to different pharmacokinetics.

community Have you noticed systemic absorption of RU58841?

in Treatment 1 upvotes 10 months ago

The conversation discusses using RU58841 as a topical treatment for hair loss, with some users reporting no systemic issues. The original poster is considering RU58841 due to limited progress with dutasteride and oral minoxidil.

community Ru with gloves because of Systemic absorption?

in Research/Science 10 upvotes 2 years ago

The conversation is about whether to use gloves when applying 5% RU58841 to avoid systemic absorption and if washing hands with water is sufficient. Users question the concern, noting it is applied to the scalp.

community Topical RU58841, which brand available in Europe with a low systemic absorption ?

5 upvotes 6 months ago

Topical RU58841 is discussed for hair loss treatment, with a focus on brands available in Europe that have low systemic absorption. Users suggest mixing your own solution to control vehicle and dosage, and mention different brands like Actifolic and Biolabshop.

community I think microneedling before topical application of finasteride (or dut) is a path we should investigate (for those of us who don't care about systemic absorption). Here's why...

20 upvotes 1 year ago

Microneedling before applying topical finasteride or dutasteride may enhance their effectiveness by increasing local absorption in the scalp, despite concerns about systemic absorption. Users discuss combining this method with oral treatments and minoxidil, noting potential benefits and side effects.

community Minimizing systemic DHT reduction with topicals

5 upvotes 4 weeks ago

The conversation discusses minimizing systemic DHT reduction using topical treatments for hair loss, specifically mentioning Minoxidil, Finasteride, and a proprietary carrier for DUT by XYON Health. The focus is on finding effective DHT blockers with minimal systemic absorption.

community Solvent for topical fin with low absorption

2 upvotes 2 years ago

The conversation is about using distilled water as a solvent for topical finasteride to reduce systemic absorption. The user is considering avoiding ethanol and propylene glycol to achieve this.

community Targeted Follicular Finasteride Delivery: A Low-Systemic Strategy

15 upvotes 5 months ago

A peptide-based delivery system for finasteride shows promise in reducing systemic side effects while maintaining hair growth effectiveness. Combining this with other treatments like minoxidil and RU58841 could enhance results with lower systemic absorption.

community Is it possible to create an estrogen mesotherapy/topical that doesn't go systemic?

7 upvotes 1 year ago

The conversation discusses the potential of using topical estrogen treatments for hair loss without systemic absorption, highlighting challenges and possible solutions like using estriol. It also mentions other treatments like topical finasteride, microneedling, and scalp massage, while noting the limitations and side effects of current options.

community Why is scalp DHT suppression lower than systemic?

in Finasteride/Dutasteride 11 upvotes 1 year ago

Dutasteride reduces DHT more effectively in hair follicles than finasteride, but some individuals still experience hair loss despite treatment. Combining oral and topical finasteride may improve results, and some users experiment with topical dutasteride despite uncertainties about its absorption.

community Can mixing RU with min compounded with tretinoin cause the RU to go sytemic

3 upvotes 8 months ago

Mixing RU58841 with minoxidil compounded with tretinoin is discussed, with concerns about systemic absorption. Topical dutasteride and finasteride are also mentioned as treatments, with varying personal experiences and concerns about side effects.

community Topical finasteride in liposomal formulation

6 upvotes 6 years ago

Topical finasteride in a liposomal formulation reduces systemic absorption compared to ethanol solutions. The user is seeking sources for such products, noting that popular options like morr-f are not liposomal.

community Propylene Glycol vs Glycerin in topical finasterside?

2 upvotes 10 months ago

Switching from propylene glycol to glycerin in topical finasteride may reduce systemic absorption and side effects while maintaining local scalp DHT suppression. Concerns exist about glycerin's ability to deliver the full dose to hair follicles.

community Applying minoxidil right after microneedling at 0.5mm a bad idea?

4 upvotes 4 years ago

Applying minoxidil immediately after microneedling at 0.5mm can cause stinging and potential systemic absorption, so some users prefer to wait 12-24 hours. Others report no issues with immediate application, but caution is advised to avoid irritation and side effects.

community Topical Dutasteride Experiment

1 upvotes 2 months ago

The user is experimenting with a homemade topical dutasteride formulation to reduce hair loss while minimizing systemic absorption, using MCT oil, almond oil, vitamin E, tea tree oil, and lavender oil. They are monitoring hair growth and side effects, particularly focusing on sexual health, and are open to feedback on their approach.

community What’s your views on clascoterone 5% topical solution by cosmo

23 upvotes 9 months ago

Clascoterone 5% topical solution shows promise for treating male-pattern hair loss by blocking DHT at the follicle without systemic absorption, potentially offering fewer side effects than oral treatments like finasteride. While results are promising, long-term safety and effectiveness need further study, and it may serve as a starting point for developing more effective treatments.

community Hydrophobic Finasteride. Why don’t we have it?

6 upvotes 1 year ago

The conversation discusses the potential benefits of creating a hydrophobic version of finasteride to reduce systemic side effects while maintaining scalp health. It compares this idea to fluridil, which is designed to be hydrophobic and has less systemic absorption.

community What happened to topical dutasteride??

in Finasteride/Dutasteride 28 upvotes 1 year ago

Topical dutasteride is considered for hair loss, but concerns about systemic absorption and side effects like reduced libido are common. Users have mixed results, with some preferring oral finasteride or dutasteride despite side effects, while others find topical treatments beneficial but challenging.

community Oral minoxidyl and topical minoxidyl

in Minoxidil 2 upvotes 1 year ago

Using both oral and topical minoxidil is likely safe, but be cautious of increased systemic absorption. The best tretinoin dosage to enhance minoxidil effectiveness is not specified.

community Topical finasteride (P-3074) inhibits scalp DHT up to 70%

in Finasteride/Dutasteride 20 upvotes 6 months ago

Topical finasteride (P-3074) can inhibit scalp DHT by up to 70%, with some users experiencing systemic absorption similar to oral use. Users discuss varying application frequencies and concentrations, with some noticing side effects when overused.

community GT-20029 should be much more superior than finasteride

39 upvotes 1 year ago

GT-20029 is discussed as a potential hair loss treatment, with concerns about its safety and systemic absorption compared to finasteride. Users express skepticism about its effectiveness and safety, noting that it may not surpass existing treatments like finasteride and minoxidil.

community Dht lowered by 50%+ on low dose topical finasteride?

16 upvotes 3 weeks ago

A 19-year-old used a 0.01% topical finasteride formula, which unexpectedly lowered DHT levels significantly. They are considering reducing the dose further and exploring alternatives like ketoconazole shampoo, KX826, and CB to manage hair loss while minimizing systemic absorption.

community Why is nobody talking about topical Spironolactone?

in Chat 12 upvotes 5 months ago

Topical spironolactone is discussed as a hair loss treatment, with concerns about its effectiveness and side effects compared to finasteride and minoxidil. Users mention its unpleasant smell, potential systemic absorption, and suggest alternatives like pyrilutamide and alfatradiol.

community Wonder if anyone has tried not just Dutasteride, but the Dutasteride mesotherapy treatments?

3 upvotes 6 months ago

Dutasteride mesotherapy is discussed as a potential treatment for hair loss, with some users suggesting it offers a slight boost when combined with oral minoxidil, though it's costly. Concerns about side effects and systemic absorption are noted, with alternatives like topical dutasteride and microneedling suggested for home use.

community Which is safest carrier for topical antiandrogens (finasteride/kx-826/ru/dutasteride)

5 upvotes 8 months ago

The conversation is about finding a safe carrier for topical antiandrogens like finasteride, kx-826, RU58841, and dutasteride to minimize systemic absorption and side effects. The user experiences side effects from these treatments and is seeking advice on carriers that reduce these effects.

community The expected timeline for PP405 - Next update at AAD Annual Meeting in March 2026 ?

34 upvotes 8 months ago

A new hair loss treatment, PP405, showed promising Phase 2a results with 31% of patients experiencing over 20% hair density increase without systemic absorption, avoiding hormonal side effects. The treatment is expected to be expensive, with Phase 3 trials starting mid-2026, and there is skepticism about the data's strength.

community Pelage Pharmaceutical Raises 120 million to continue PP405 Research. Link inside.

in Research/Science 73 upvotes 11 months ago

Pelage Pharmaceutical raised $120 million to continue research on PP405, a promising hair loss treatment that showed a 20% increase in hair density in 31% of men during a Phase 2a trial. The treatment was well-tolerated, with no systemic absorption, and Phase 3 trials are planned for 2026.

community Topical dutasteride significantly outperforms oral finasteride

in Research/Science 65 upvotes 11 months ago

Topical dutasteride 0.05% is reported to outperform oral finasteride with minimal side effects, but concerns about study bias exist due to company funding. Some users report mixed results with topical dutasteride, noting issues with skin penetration and systemic absorption.

community Microneedling at .25 everyday before applying Min

in Minoxidil 26 upvotes 1 year ago

Daily microneedling at 0.25mm before applying minoxidil is debated, with some suggesting weekly microneedling is safer and more effective. Concerns include potential skin damage and systemic absorption, while alternatives like tretinoin are considered safer for enhancing minoxidil absorption.