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Nutrafol, RenewGlow, and Ouai: Which Hair Vitamin is Best for Hair Growth and Thinning Hair?

Top reviewed picks are Nutrafol, RenewGlow, and Ouai, but which one stops your hair from thinning and shedding?

Written By : Ginger LewisJul 12, 2024

Ginger is a chef and dietitian with a keen understanding of how diet affects overall health.

Ginger is a chef and dietitian with a keen understanding of how diet affects overall health.

It’s time to look in the mirror and swoon over your hair growth.

You know the feeling you get when your hair looks good? Your confidence is through the roof, and everything is working out beautifully.

Studies show that when you look good, you feel good. So, it’s no surprise that your hair directly connects to how confident you feel every day.

Did you know that over 50% of women encounter hair loss by age 40? Yes, it’s a staggering (yet accurate) statistic.

Hair loss in women occurs for several reasons: menopause, stress, using the wrong hair products — there are even some medications that can trigger hair loss in women.

Still, the frustrating thing is that most people don’t understand the emotional struggle that comes along with any level of hair loss — unless you’ve gone through it yourself.

Shedding and thinning hair can affect you on an incredibly personal level.

There’s more hair in the sink. Your part is getting wider. Your ponytail is thinning. And, though nobody else seems to notice, day after day, this chips away at your self-confidence.

But it doesn’t have to be this way — there is a solution. Women everywhere are regaining confidence with hair vitamins that support longer, stronger, thicker hair growth.

It’s empowering to see how hair vitamins can change lives by boosting hair growth and nurturing a newfound confidence in women that is absolutely inspiring.

We understand it takes too much time and effort to research the best hair vitamins.

That’s why we rounded up the top-rated, most effective hair vitamins for thinning and shedding hair so you can always move through your day feeling like the goddess you are!

So… Which vitamins should you take to repair your hair?

Well, there are a lot of “solutions” on the internet that claim to be the “magic pill.” It’s possible you’ve even tried some of them. You’re here now because you’ve resolved to do something to improve your hair health. To find out the right solution for you, it’s crucial to understand a few key things:

1. Why is your hair thinning in the first place?

Hair thinning can be caused by a wide variety of things happening in your body. Sometimes several factors can be affecting your hair health at the same time.

  • Hormonal Changes: During menopause, levels of female hormones like estrogen and progesterone decrease, which can lead to hair becoming thinner, dryer, and more brittle. These hormonal changes can also affect the hair-growth cycle, leading to increased shedding and slower regrowth, contributing to overall hair thinning.
  • Nutrient Deficiencies: With age, our body’s ability to absorb certain nutrients decreases. The lack of essential vitamins like biotin, Vitamin D, and iron can lead to poor hair health
  • Stress and lifestyle: Stress is another common factor, and the worst part is, it’s like a snowball effect. Your hair starts thinning. You get stressed that it’s thinning, and it thins even more. But there is hope: once you’re on the path towards restoration, you’ll experience less hair-related stress, which helps your hair regrow at a faster pace.

2. Who Benefits from Hair Growth Vitamins?

If you have any of the following – hair vitamins are the way to go:

  • Age-related decline leading to hair thinning and loss
  • Regions where the scalp starts to show through
  • A Visibly Widening part
  • Hair that feels thin and weak
  • An increase in the amount of hair that builds up on your brush

3. What Should You Expect from High-quality Hair Vitamins?

Offering a rich blend of essential nutrients, hair vitamins present a sustainable long-term strategy for hair restoration, without the harsh side effects often linked with alternative methods.

First Month
You’ll likely observe fewer strands in your brush, signaling that your hair follicles are beginning to receive the nourishment they crave. Beware of companies boasting of miraculous hair volume within just 30 days.

Second Month
As long as you are taking the vitamins as advised, your hair should become noticeably healthier, and thicker.

Third Month and Beyond
This is generally the stage where you’ll become aware of a significant increase in both the length and density of your hair. For this reason, it’s advised to maintain your vitamin routine for a minimum of three months. Keeping up the support is also key, as many have noticed the hard way – if you stop giving your body the right nutrients, you will be back at square one.

Even though now you should be equipped with the knowledge of hair vitamins – You MUST Remember – Most don’t work – (especially the cheaper ones!!!) at least not fully, and the ones that are able to tackle the root causes of hair thinning tend to be expensive. But don’t worry, we went out and found the ones that do.

We looked for key Ingredients, clinical studies, customer reviews, safety, return policies, and the best prices.

RenewGlow Hair Supplements

Overall Score: Excellent

$33.99 each for 2

RenewGlow combines 27 powerhouse ingredients that help strategically fill gaps in your diet and support the health and vitality of your hair, skin, and nails. RenewGlow is also backed by a clinical study* (I know it’s long, but we read it all), and the results show that it truly works.* We also took the time to read through customer reviews, both on Amazon and on their site — we were moved by the emotional struggles people overcame with RenewGlow. And not to mention – you get a 60-day money-back guarantee in case anything goes wrong!



Regular Price: $83.60

Nutrafol is another popular product that really works, but the steep price got this hair vitamin at the number two spot. Compared to RenewGlow, it’s twice as expensive for their cheapest option! Backed by clinical studies, Nutrafol incorporates a similar powerhouse list of ingredients. They even have their own patents. But how does that compare to RenewGlow? Well, we didn’t find conclusive evidence that their formula is much better. So, while your hair might be gaining volume quicker, your wallet will slim down just as fast.



Regular Price: $67.49

Ouai Hair Vitamins claim the third spot, following RenewGlow and Nutrafol. The reason for its position isn’t about lack of quality, but rather a matter of ingredients and specific effectiveness in comparison. Ouai, while packed with essential nutrients like biotin and folic acid, has a formulation that’s a bit lighter compared to the more robust ingredient profiles of RenewGlow and Nutrafol. These two lead the pack with their comprehensive blend of vitamins and minerals that target a wider range of hair health issues, from strength to growth.