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Glossary Injections

method of delivering substances directly into the body via needle

Injections, also known as shots or jabs, are a method of delivering medication or other substances directly into the body using a needle and syringe. This technique allows for rapid absorption and precise dosing, making it a common practice in medical treatments, including vaccinations, hormone therapies, and treatments for conditions like alopecia.

Related Terms

Research

5 / 1000+ results

research Induction of the hair growth phase in postnatal mice by localized transient expression of Sonic hedgehog

231 citations , October 1999 in “Journal of Clinical Investigation”

This study found that administering an adenovirus vector to increase Sonic hedgehog gene expression in mouse skin accelerated the transition of hair follicles into the growth phase, promoting hair growth.

research Refinement of Technique in Injection Lipolysis Based on Scientific Studies and Clinical Evaluation

39 citations , March 2009 in “Clinics in plastic surgery”

This review discusses the evolution and studies of injection lipolysis for fat reduction, highlighting the need for more research to ensure patient safety and treatment efficacy; it reports no new clinical results.

research Injections of platelet-rich plasma for androgenic alopecia: A systematic review

25 citations , July 2017 in “Journal of Stomatology, Oral and Maxillofacial Surgery”

This review suggests that PRP injections may be effective in promoting hair regrowth, reducing hair loss, and increasing hair thickness in patients with androgenic alopecia.

Injectable Silver Nanoclusters-Based Hydrogel for Wound Healing by Eliminating Bacterial Infection and Promoting Tissue Regeneration

research Injectable Ag nanoclusters-based hydrogel for wound healing via eliminating bacterial infection and promoting tissue regeneration

21 citations , November 2020 in “Chemical Engineering Journal”

In this study, an injectable hydrogel incorporating antibacterial agents was shown to effectively heal wounds and promote hair follicle and capillary regeneration, offering a promising approach for skin tissue engineering.

Intradermal Injections of a Hair Growth Factor Formulation for Enhancement of Human Hair Regrowth: Safety and Efficacy Evaluation in a First-in-Man Pilot Clinical Study

research Intradermal injections of a hair growth factor formulation for enhancement of human hair regrowth – safety and efficacy evaluation in a first-in-man pilot clinical study

17 citations , February 2018 in “Journal of Cosmetic and Laser Therapy”

In this study, researchers administered eight sessions of intradermal injections containing growth factors into the scalp of 1000 patients, reporting a significant reduction in hair fall in 83% of participants and increased total hair count and shaft diameter, with promising tolerance and safety.

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Community Join

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community Injecting estrogen for hairline regrow

268 upvotes 1 year ago

A user plans to undergo a temporary MtF transformation to regrow hair, using estrogen, RU58841, and Dutasteride, then revert with testosterone. Many users criticize the plan, suggesting alternatives like hair transplants, and emphasize that estrogen is not a reliable solution for hair regrowth.

community Infection from micro needling even with medicated shampoos and sanitation

4 upvotes 1 year ago

The conversation discusses scalp itching and tenderness after microneedling, despite using medicated shampoos and proper sanitation. The user plans to see a dermatologist and is concerned about possible infection or allergic reaction.

community 20MTF Results on the crown from 1 year on estrogen injections

468 upvotes 6 months ago

Estrogen injections significantly improved hair growth, particularly on the crown, after stopping finasteride. Monotherapy with estrogen led to hairline improvement, but also caused sterility and potential feminization effects.

community can PRP(platelet-rich plasma hair injection therapy) make oral minoxidil’s progress permanent?

1 upvotes 1 year ago

PRP therapy cannot make oral minoxidil's effects permanent, as minoxidil does not stay permanently in the system. Dosage of oral minoxidil is typically increased gradually, but there is a limit, and it should not be increased indefinitely.

community GHK-Cu peptide injections - what is your experience?

13 upvotes 6 months ago

GHK-Cu peptide injections are discussed for hair growth, but users report mixed results and suggest focusing on DHT management first. Some users combine GHK-Cu with treatments like Minoxidil and Dutasteride, but emphasize its benefits for skin rather than hair.

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Learn

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learn Scalp Micropigmentation

Is there a risk of infection with scalp micropigmentation? Scalp micropigmentation has a risk of infection, but proper aftercare minimizes it.

learn Botox

What’s the science behind Botox injections for androgenetic alopecia? Small published studies and a 2025 meta-analysis report hair-count gains from scalp botulinum toxin injections, but nearly all of them lack control groups, and reviewers of the same literature call the evidence low-quality; the treatment is off-label and not approved for hair loss anywhere.

Clinics

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Experts

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