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NOW Supplements Vitamin A
SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
USERS' SCORE
Medium or Average
Based on 4 Reviews
6.3
Supplement Facts
Serving Size:  1 Softgel
Amount Per Serving
%DV
Vitamin A (from Retinyl Palmitate and Fish Liver Oil)
7,500 mcg
833%

Top Medical Research Studies

9
Vitamin A's role in hair recovery
Retinoic acid drives hair follicle stem cell activation via Wnt/β-catenin signalling in androgenetic alopecia.
Directly relates to hair loss treatment
We aimed to understand how retinoic acid (RA), a derivative of vitamin A, impacts hair loss, particularly in individuals suffering from androgenetic alopecia (AGA). By examining hair follicles from both the occipital and frontal areas of the scalp, we were able to conduct RNA sequencing to observe patterns relevant to HFSC (hair follicle stem cell) health.

In our experiments, we utilized a mouse model to see how administering RA affects hair growth during the telogen phase, a resting period for hair follicles. We then subjected miniaturized hair follicles to RA treatment in controlled organ cultures to assess hair shaft elongation and the activity of HFSCs.

The results revealed that RA signaling appeared to be diminished during AGA, leading to dysfunction in HFSCs. When we treated hair follicles with RA, we observed a notable recovery in hair regeneration. This treatment seemed to promote hair growth by activating HFSCs through Wnt/β-catenin signaling pathways, facilitating their transition from a quiescent to an active state.

Additionally, a clinical part of the study confirmed that RA may hold promise as an early intervention tactic in AGA, reinforcing its role in reviving hair follicle activity. Overall, our findings suggested that vitamin A can be a game-changer in addressing hair loss by effectively reactivating stem cells in hair follicles.
Read More

Most Useful Reviews

0
Warning on toxicity
This is NOT a safe substitute for Accutane. While some report clear skin from this product, it is crucial to understand the risks. High doses of retinol can be toxic and, ironically, can cause severe hair loss. It's not worth risking permanent damage.
Read More
0
Severe hair loss
DO NOT TAKE THIS UNLESS YOU WANT TO LOSE YOUR HAIR. This is the worst supplement I have ever taken. The label should read "MAY CAUSE SEVERE HAIR LOSS" or it should not be sold at all. At 33, I’ve had no thinning hair, and it’s not in my family. I thought this might help my skin but after starting it, I developed a one-inch balding spot on the left side of my head, and soon after, one on the right. I discovered that extra vitamin A can cause balding, and the dermatologist advised me to stop immediately. Now I just hope my hair grows back. I am furious that this is not labelled for high risk of causing baldness.
Read More
0
Caution on overdosing
THIS IS A TOXIC DOSE OF VITAMIN A!!! I have taken this daily since January. My hair has started thinning, which is concerning as I have thick hair and no family history of hair loss. The dose is excessive and can lead to hair loss. It's vital to know your proper intake levels to avoid this reversible cause of hair loss.
Read More

Medical Researches

SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
  • All Researches
9
Vitamin A's role in hair recovery
Retinoic acid drives hair follicle stem cell activation via Wnt/β-catenin signalling in androgenetic alopecia.
Directly relates to hair loss treatment
We aimed to understand how retinoic acid (RA), a derivative of vitamin A, impacts hair loss, particularly in individuals suffering from androgenetic alopecia (AGA). By examining hair follicles from both the occipital and frontal areas of the scalp, we were able to conduct RNA sequencing to observe patterns relevant to HFSC (hair follicle stem cell) health.

In our experiments, we utilized a mouse model to see how administering RA affects hair growth during the telogen phase, a resting period for hair follicles. We then subjected miniaturized hair follicles to RA treatment in controlled organ cultures to assess hair shaft elongation and the activity of HFSCs.

The results revealed that RA signaling appeared to be diminished during AGA, leading to dysfunction in HFSCs. When we treated hair follicles with RA, we observed a notable recovery in hair regeneration. This treatment seemed to promote hair growth by activating HFSCs through Wnt/β-catenin signaling pathways, facilitating their transition from a quiescent to an active state.

Additionally, a clinical part of the study confirmed that RA may hold promise as an early intervention tactic in AGA, reinforcing its role in reviving hair follicle activity. Overall, our findings suggested that vitamin A can be a game-changer in addressing hair loss by effectively reactivating stem cells in hair follicles.
Read More

User Reviews

USERS' SCORE
Medium or Average
Based on 4 Reviews
6.3
  • All Reviews
  • Positive Reviews
  • Negative Reviews
0
Warning on toxicity
This is NOT a safe substitute for Accutane. While some report clear skin from this product, it is crucial to understand the risks. High doses of retinol can be toxic and, ironically, can cause severe hair loss. It's not worth risking permanent damage.
0
Severe hair loss
DO NOT TAKE THIS UNLESS YOU WANT TO LOSE YOUR HAIR. This is the worst supplement I have ever taken. The label should read "MAY CAUSE SEVERE HAIR LOSS" or it should not be sold at all. At 33, I’ve had no thinning hair, and it’s not in my family. I thought this might help my skin but after starting it, I developed a one-inch balding spot on the left side of my head, and soon after, one on the right. I discovered that extra vitamin A can cause balding, and the dermatologist advised me to stop immediately. Now I just hope my hair grows back. I am furious that this is not labelled for high risk of causing baldness.
Read More
0
Caution on overdosing
THIS IS A TOXIC DOSE OF VITAMIN A!!! I have taken this daily since January. My hair has started thinning, which is concerning as I have thick hair and no family history of hair loss. The dose is excessive and can lead to hair loss. It's vital to know your proper intake levels to avoid this reversible cause of hair loss.
Read More
6.8
Acne treatment success
Works well. I began taking these to address moderate acne and cystic bumps on my face. Adding one softgel daily has dried up sebum production. I introduced Vitamin E as a counterbalance to dryness. Both have worked well together, plus my hair is growing quickly as a side effect!
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