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Glossary vitamin A

fat-soluble nutrient crucial for vision, immunity, and skin health

Vitamin A is a fat-soluble nutrient essential for maintaining healthy vision, immune function, and skin health. It exists in two primary forms: retinoids (found in animal products) and carotenoids (found in plant-based foods). Deficiency in vitamin A can lead to vision problems, including night blindness, and can compromise the immune system.

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learn vitamin A

Are you unknowingly overdoing vitamin A? It could be speeding up hair loss linked to hormones like DHT. Sustained vitamin A intake above the tolerable upper limit (3,000 mcg/day of retinol for adults) is linked in case reports to diffuse hair shedding; the claim that it amplifies DHT-driven hair loss has no published human evidence behind it.

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What are the signs of a Vitamin B6 deficiency related to hair health? Signs of Vitamin B6 deficiency include hair thinning, dry scalp, and brittle hair.
Are there topical products that contain Vitamin B6 for scalp care? Yes, there are topical products with Vitamin B6 for scalp care.

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Are topical Vitamin D treatments useful for alopecia? Topical Vitamin D treatments may help some individuals with alopecia.

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How does Vitamin B5 (Pantothenic Acid) support hair strength and thickness? Vitamin B5 supports hair strength and thickness by aiding energy production in hair follicles.

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learn Calcium D oantothenate

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Research

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research Oral vitamin A as an adjunct treatment for canine sebaceous adenitis

15 citations , May 2011 in “Veterinary Dermatology”

In this study, dogs with sebaceous adenitis were treated with oral vitamin A, but responses varied widely, showing improvements in some cases while others experienced no benefit.

research Intracranial hypertension secondary to low doses of vitamin A

October 2022 in “Deleted Journal”

This case study reports intracranial hypertension in a 60-year-old woman linked to prolonged intake of low-dose Vitamin A from propolis capsules, highlighting a potential risk even at lower dosages.

research Iperplasia Collaterale Nella Oncogenesi Sperimentale Del Ratto: Rilievi in corso di trattamento con Vitamina A

May 1961 in “Tumori Journal”

This study found that vitamin A treatment in rats reduced hyperplastic-dysplastic changes and sebaceous gland hypertrophy associated with 3,4-benzpyrene-induced tumors.

research Combined effect of high-dose vitamin A, vitamin E supplementation, and zinc on adult patients with diabetes: A randomized trial

20 citations , June 2020 in “Journal of Advanced Research”

This study found that high-dose vitamin A and E supplementation with zinc may improve glycemic control and beta-cell function in patients with type 2 diabetes, compared to no supplements.

Vitamin D And The Skin: A Review For Dermatologists

research Vitamina D y la piel. Una revisión para dermatólogos

16 citations , March 2019 in “Actas Dermo-Sifiliográficas”

This review discusses the relationship between vitamin D and various skin diseases but reports no new clinical results, emphasizing the need to assess and correct vitamin D deficiencies.

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community Rare case: AGA recovery with vitamin D alone (case study)

51 upvotes 5 months ago

Vitamin D deficiency can hinder hair recovery, and addressing it may help with hair loss. Hair loss may result from various issues like excess DHT, vitamin deficiency, or scalp inflammation.

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

in Chat 65 upvotes 1 year 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 Applying vitamin e capsules on scalp for regrowth.

4 upvotes 7 years ago

Applying vitamin E capsules, specifically tocotrienols, on the scalp for hair regrowth. Users are skeptical about its effectiveness due to lack of evidence.

community Has anyone here is vitamin D deficient and lost hair and then regrew?

9 upvotes 3 weeks ago

A user with diffused thinning hair has been using topical minoxidil for over three years with little improvement and is now taking finasteride regularly. They were found to be vitamin D deficient and are on a 20,000 IU weekly prescription, seeking advice on whether correcting the deficiency can aid hair regrowth.

community Does anyone have a list of vitamins that could help alongside dut and min?

6 upvotes 6 months ago

The conversation is about hair loss treatments, specifically using dutasteride and oral minoxidil, and exploring additional vitamins and supplements like vitamin D, zinc, biotin, and omega-3 to support hair health. Users suggest getting a blood panel to identify deficiencies and emphasize the importance of protein and overall nutrition.

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