Extra Strength Hair Growth Serum

Rated 4.3/5 based on 7,304+ reviews

Rennora Extra Strength Hair Growth Serum

Stop your hair loss, regrow your edges, hairline and crown with the strongest hair growth serum ever made for black women.

120-Day Money-Back Guarantee

Free Shipping Included

Ericka H.

I had absolutely very little hair in the crown of my head... I’m a BELIEVER!!! ... I had started seeing a dermatologist at the same time I started using the Rennora extra serum. The serum worked way better than the prescribed medication. It actually gave me a bad allergic reaction. ... You gave me back my confidence and helping me get my crown back!!!

Benefits

Thousands of Satisfied Customers Experience:

New Hair Growth in 2 Weeks
Restored Edges & Hairline
Filled-In Bald Spots & Crown
Stopped Shedding & Breakage
Thicker, Fuller Hair Density

How Rennora Extra Strength Hair Growth Serum Works

Rennora works three ways to regrow your hair.

First, it calms the inflammation that's killing your follicles and causing hair to fall out.

Second, it blocks the hormone (DHT) that shrinks your follicles and makes them stop growing hair.

Third, it opens up tiny blood vessels in your scalp. This floods your starving follicles with oxygen and nutrients—like watering a dried-out plant.

Baby hairs start showing up in 2 weeks when blood flow kicks in. Your edges fill in by week 4. Bald spots get thicker within 3 months as your follicles wake back up and start their normal growth cycle again.

How To Use

Massage a few drops into your scalp every night for 2 to 4 minutes. Focus on your problem areas - thinning spots, edges, crown, wherever you need growth. Leave it in overnight.

The formula is lightweight and absorbs fast. After a few minutes, you won't even feel it on your scalp.

No greasy mess, no heavy residue. Just let it work while you sleep.

That's it. Simple routine, real results.

Natural Ingredients

Rennora Extra Strength Hair Growth Serum packs 52 hair growth boosting ingredients into one lightweight serum—no mixing dozens of oils yourself.

BHRINGRAJ – Studies show this "King of Hair" can transition hair follicles from the resting phase back into the active growth phase faster than many other herbal extracts.

PEPPERMINT OIL – Studies show it can increase the number of hair follicles and hair depth by stimulating blood flow to the scalp through natural vasodilation.

ROSEMARY OIL – Studies show it is as effective as 2% Minoxidil (Rogaine) for regrowing hair and reducing scalp itchiness by improving cellular turnover and blood circulation.

GINSENG – Studies show the ginsenosides in the root can promote the proliferation of dermal papilla cells, essentially "restarting" the hair growth cycle.

FENUGREEK – Studies show it is rich in nicotinic acid and lecithin, which help treat scalp issues while providing the building blocks for healthy hair proteins.

CAFFEINE (from Black Tea) – Studies show it can help extend the "Anagen" (growth) phase of the hair cycle and improve the diameter of the hair strand by stimulating the roots.

Plus there's more that help stop hair loss, boost hair growth, moisturize the scalp and protect your hair.

Soybean oil, Castor Oil, Grape Seed Oil, Olive Oil, Black Seed Oil, Chili Oil, Argan Oil, Tea Tree, Amla, Bhringraj, Stinging Nettle, Peppermint, Mustard seed, Basil, Sesame Seed, Rosemary, Sage, Tyme, Aloe, Garlic seed, Onion seed, Pygeum, Biotin, Ginkgo Biloba, Black Tea, Neem, Aritha, Calendula, Chamomile, Dandelion, Lemongrass, Saw Palmetto, Ginseng, Fenugreek, Ginger Root, Gotu Kola, Hibiscus, Lavender, Horsetail, Champak, Clove, Champaca, Khas khas, Marorphal, Clary Sage, Valampuri, Dampuri, Pulankilangu, Chandramoolika, Curry Leaves, Ranawara, and Kari Pattu.

120-Day Money-Back Guarantee

Four full months to see your hair grow back. If it doesn't, we refund your order. Either your hair grows back, or you get your money back. Simple as that.

Real Black Women. Real Hair Growth.

We've helped over 300,000 black women stop their hair loss, here's why they love Rennora Hair Growth

Donna S.

"I’ve watched my hair growth while using your products since September 2025. GOD has blessed me by giving me hair after the chemotherapy in 2023. Your product has lengthened my hair and it appears to fill in some spots while thickening at the same time"

Alice B.

"I saw your product on my phone. I pondered over it for a month before I decided to try it. In 3-4 weeks my hairdresser saw some significant growth. I kept using it and in about two months she was able to catch up enough to do a single braid from top to bottom. I continue to use it and the results have been amazing. I got my self-confidence back."

Stacy B.

"I lost my hair from an accident. I had brain surgery. I am a Board Certified Trichologist and I have my hair loss clients using it!!! It's Fabulous. Thank you !!"

Patricia T.

"Thanks rennora! Using your product along with my weekly maintenance program has changed my life! I love this product! Thanks for loving on us women of color!!!!

How It Works

Calm Inflammation

The lightweight serum absorbs deep into your scalp, soothing the chronic inflammation from years of braids, wigs, and relaxers. Damaged follicles stop being choked off and can breathe again.

Block DHT Hormone Damage

Active compounds stop DHT from shrinking your follicles at the receptor level. Follicles that were miniaturizing and shutting down start functioning at full capacity again.

Restore Blood Flow to Starved Follicles

Blood vessels open up, flooding dormant follicles with oxygen and nutrients. It's like turning the water back on to a dying plant—follicles finally get the fuel they need.

Trigger New Growth Cycles

Reawakened follicles receive growth signals and start producing hair again. Each cycle builds stronger, thicker strands because the root cause is fixed, not just covered up.

Your Journey to Hair-Free Skin

What you can expect with consistent daily use of Rennora Hair Growth Serum

The pattern is always the same:

2 Weeks

Baby Hairs Emerge

Tiny new hairs start sprouting along your hairline and thinning areas. Your scalp feels healthier. You find less hair strands on the floor & pillows.

4 Weeks

Edges Fill In

Your hairline starts coming back. Thin, receding edges begin to thicken as new growth takes hold. You can finally see the difference when you look in the mirror.

2 Months

Density Increases

Your hair feels fuller when you run your hands through it. Bald spots show visible coverage. Parts look narrower. The overall thickness across your scalp improves dramatically.

4 Months

Visible Transformation

Bald spots fill in completely. Your crown thickens. Edges are restored. You're growing strong, healthy hair because your follicles are finally functioning properly again.

6 Months

Styling Freedom Returns

Grow your hair to tailbone length. Rock a full, thick afro. Try braids, twists, or styles you gave up on years ago. You're not just fixing hair loss—you have real options again.

Many See Noticeable Growth In 2-4 Weeks

74%

Report New Hair Growth Within 4 Weeks

Faster Regrowth Timeline

Most women see baby hairs and edges fill-in within the first month. Reviews consistently mention visible new growth appearing faster than they expected.

81%

Report Reduced Shedding and Breakage

Stronger Hair Retention

Reviews mention dramatically less hair in the shower, on pillows, and when styling. Hair that grows actually stays instead of falling out.

86%

Report Restored Edges and Hairline

Edges Grow Back

Women talk about finally being able to style their hair without hiding thin edges. Hairlines fill back in. No more worrying about your temples showing.

Rated 4.3/5 based on 7,304 reviews

Marion

Verified Buyer

"After years of wearing wigs, and buying hundreds of product for my hair that didn’t work I decided , what do I have to lose??

Well, this was one of the best decisions of my hair life (lol). As you can see from my photos, the products works!!! What a difference these has been for my hair, life, and self confidence!!! A big thanks!!!!!"

Susan

Verified Buyer

"Hello I started using Rennora Serum everyday without fail since February and the results are phenomenal!!! I was ashamed of this bald spot that I acquired from having my hair locked for so many years and when menopause set in it really changed things. Here are two photos I want to share, the first was 2/27 and the second is 5/13. What an amazing product!! I still have more to go and I know I will get there using your product.”

Dana A

Verified Buyer

"I had hair loss and started wearing wigs. Then one day I was introduced to this. And I thought what do I have to lose, except for more hair if I don't try it. So I did, it smells very pleasant, I put it on in the morning while im getting ready. And I am seeing great results, I love it, if you're looking for something that could possibly work for you, I highly recommend Rennora Hair Growth Serum"

Made To Stop Black Women's Hair Loss

Most products use 1-2 basic water-downed oils, Rennora combines 38 clinically-studied compounds that target every cause of hair loss simultaneously

Calendula

Soothes inflamed follicles from years of styling damage. Reduces irritation that causes shedding.

Pygeum

Blocks DHT from shrinking your follicles. Stops hormonal hair loss at the root.

Gotu Kola

Opens blood vessels in your scalp so oxygen and nutrients can reach starving follicles.

Bhringraj

Sends growth signals to shut-down follicles. Tells them to start producing hair again.

Stinging Nettle

Double action: calms inflammation and blocks DHT production at the same time.

Ginseng

Strengthens follicles and speeds up the growth cycle so hair grows faster and thicker.

These six power ingredients do the heavy lifting. But they're supported by 32 additional compounds—including Rosemary, Peppermint, Amla, Saw Palmetto, and Hibiscus. These help nourish your scalp, protect against future damage, and keep new hair growing strong. Everything your follicles need to reverse hair loss, in one bottle.

So Easy To Use

Grow hair in two minutes per day

1

Apply To Your Scalp

Focus on the areas where you’re trying to grow or thicken your hair.

2

Massage Your Scalp

Use your fingertips to gently rub the serum into your scalp for about two to five minutes. This helps boost circulation and gets all those nutrients deep into your roots.

3

Do It Daily

Whether it’s in the morning before work or at night before bed. Consistency is key to seeing the best results, so stick with it, and your hair will thank you!

The Only Hair Growth Serum Made For Black Women

Other Hair Growth Products

Hair Transplant

Targets Root Cause of Your Hair Loss

All-Natural & Safe / Drug-Free

Designed Specifically for Black Women

Fast-Acting & Effective Edge and Crown Growth

120-Day Money-Back Guarantee

Frequently Asked Questions

How is this different than the regular Rennora Hair Growth Serum?

This is our extra strength formula. It's twice as potent. If you have extreme hair loss and nothing else works for you, Rennora Extra Strength Hair Growth Serum is your best chance at stopping your hair loss and seeing hair growth.

Does this have side effects?

No. It's 38 natural ingredients applied topically to your scalp. It's not a pill messing with your hormones or a chemical burning your skin. Worst case, you might feel a slight tingle from the peppermint—that's the blood flow kicking in. Do a patch test for 48 hours to make sure you aren't allergic to anything.

Will I see results or is this another scam?

We have hundreds of reviews from women who've regrown their edges, filled in bald spots, and thickened their crown. We're also giving you 120 days to see it work yourself. If your hair doesn't grow back, we refund you. We can't afford that guarantee if the product doesn't work.

Is the growth permanent, or does it stop when I stop using it?

The growth is real and your follicles stay healthier. But if you stop using it, inflammation and DHT damage can come back over time—especially if you go back to damaging styles. Think of it like working out: the muscle you build is real, but you need to maintain it.

I have genetic hair loss. Will this still work for me?

Yes. Genetic hair loss is usually driven by DHT shrinking your follicles and inflammation preventing them for getting the nutrients and blood flow they need to grow. Rennora blocks DHT and restores blood flow, which reverses that process. It works on aging, hormonal, genetic, and styling damage—all of it.

How long until I see results?

Baby hairs in 2 weeks. Edges filling in by week 4. Bald spots showing coverage within 3 months. It's not overnight, but it's fast compared to doing nothing or using products that don't work.

Can I use this with braids, wigs, or relaxers?

Yes! Just make sure to apply Rennora Hair Growth Serum to your scalp.

How long does each bottle last?

Each bottle should last about 1 month!

Can I return It If I Don't Like It?

Absolutely! We offer a 120-day money-back guarantee.

If you're not completely satisfied within the first 120 days, you can return the product for refund.

Order Now To Stop Your Hair Loss