Redensify Treatment Serum
Clinically shown to increase hair density and volume in 3 months, thickness in 6.* This fast-absorbing scalp serum with 3% Redensyl and 1% Kopexil nourishes the scalp, helps reduce shedding, and soothes without greasiness or disrupting your hair style.
Dermatologist tip: Visible improvements in hair density typically require at least 90 days of consistent use. Most users finish about 2-3 serum tubes during that time.
1 serum tube lasts between 4-6 weeks of twice daily usage, depending on size of treated area.
- Supports visibly thicker, stronger hair
- Helps reduce hair shedding
- Strengthens the scalp’s natural barrier
- Instantly hydrates the scalp without leaving residue
- Delivers serum precisely and hygienically with a needle-nose tip
Redensyl 3% - Supports hair density and helps maintain a healthy growth cycle
Kopexil 1% - Supports the appearance of fuller-looking hair and helps maintain a healthy follicle environment
TrichoCore Complex™ - Proprietary multi-pathway blend that helps to nourish and fortify hair, from root to tip made up of: Caffeine, Zinc, Adenosine, and Pumpkin Seed Oil
Adapinoid - 3rd generation gentle retinoid that helps revitalize scalp skin
Panthenol + Ectoin - Hydrate and soothe to support a healthy scalp barrier
Full Ingredient List: Water/Aqua/Eau, Glycerin, Propanediol, 1,2-Hexanediol, Panthenol, Diaminopyrimidine Oxide, Cucurbita Pepo (Pumpkin) Seed Oil, Larix Europaea Wood Extract, Camellia Sinensis Leaf Extract, Serenoa Serrulata Fruit Extract, Ectoin, Lecithin, Adenosine, Caffeine, Glycine, Zinc PCA, Octyldodecanol, Ethylhexylglycerin, Zinc Chloride, Sodium Phytate, C9-12 Alkane, Sodium Acrylates Copolymer, Caprylyl/Capryl Glucoside, Sorbitan Oleate, Oleyl Adapalenate, Polyisobutene, Sodium Metabisulfite, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
In a clinical study* of 32 participants with hair thinning confirmed by a board-certified dermatologist:
100% of participants showed improvement in hair density and volume
97% of participants showed improvement in hair thickness
*Based on a 24-week clinical study with 32 participants, dermatologist-evaluated. Results may vary.
Results after 3 months (12 weeks):
100% are satisfied with their results*
97% agree overall hair volume looks improved*
91% noticed an improvement in the appearance of thinning*
91% say hair looks denser in areas of application*
Results after 6 months (24 weeks):
100% report more confidence in their hair’s appearance*
100% would recommend this serum to someone experiencing thinning or shedding*
100% report less breakage*
97% agree areas of previous thinning appear fuller*
*Based on an independent, third-party consumer perception study with 32 participants, measured at 12 and 24 weeks. Responses are self-reported. Individual results may vary.
- Section hair into five parts and apply the serum to dry or damp scalp.
- Massage gently with fingertips to distribute evenly; do not rinse out.
- Non-greasy, fast-absorbing formula sinks in quickly, letting you add it to your routine in seconds.
- Use twice daily for optimal results.
DERMATOLOGIST-FORMULATED
CLINICALLY PROVEN
COLOR SAFE
FRAGRANCE-FREE
VEGAN
Clinically shown to increase hair density, volume, and thickness.*
In an independent clinical study, the Redensify Treatment Serum increased hair density and volume in just 3 months, with added thickness by 6 months.*
*Based on a 24-week clinical study with 32 participants, dermatologist-evaluated. Results may vary.
Baseline
After 24 Weeks
Results after 3 months*
100% are satisfied with their results
97% agree overall hair volume looks improved
91% noticed an improvement in the appearance of thinning
91% say hair looks denser in areas of application
*Based on a 12-week independent consumer perception study with 32 participants. Self-reported. Individual results may vary.
Baseline
After 12 Weeks
Results after 6 months*
100% report more confidence in their hair’s appearance
100% report less breakage
97% agree areas of previous thinning appear fuller
97% report fewer hairs falling out in the shower or when styling
*Based on a 24-week independent consumer perception study with 32 participants. Self-reported. Individual results may vary.
Baseline
After 24 Weeks
How To Use
01
Section Hair
Using a comb or your fingers, section hair into 5 parts to treat the entire scalp, or part only where thinning is visible, like the hairline, part, or crown.
02
Apply & Massage
Gently squeeze to dispense — a little goes a long way. Apply directly to the scalp and massage in. Take a moment for a quick scalp massage; this helps stimulate scalp circulation, supporting optimal conditions for hair growth.
03
Use Twice Daily
For best results, apply morning and night as part of your daily routine.The lightweight, fast-absorbing serum hydrates without leaving residue — so it never feels greasy, sticky, or ruins your blowout.
3% Redensyl
Supports hair density and helps maintain a healthy growth cycle.
1% Kopexil
Supports the appearance of fuller-looking hair and helps maintain a healthy follicle environment.
TrichoCore Complex™
Our proprietary multi-pathway blend featuring Caffeine, Zinc PCA, Adenosine, and Pumpkin Seed Oil to nourish and fortify hair.
Adapinoid
Helps promote healthy skin cell turnover.
Panthenol
Hydrates, soothes, and strengthens the scalp barrier while improving hair elasticity.
Ectoin
Shields the scalp from environmental stress and irritation while supporting barrier health.
What To Expect
Refresh (Weeks 0–6)
- Temporary shedding is normal as follicles refresh
- More balanced scalp with less oil and flaking
Revitalize (Weeks 6–12)
- Hair appears fuller and denser
- Less visible thinning
Reinforce (Weeks 12–24+)
- Hair volume and density continue visibly improving
- Strands look thicker and feel stronger
Frequently Asked Questions
It’s all about consistency. Visible improvements in hair density typically require at least 90 days of consistent use. In the first few weeks, your scalp begins to rebalance, and some may notice a brief increase in shedding as follicles shift into a healthier cycle. Around three months, hair starts to look fuller, with less noticeable thinning. With continued use beyond three months, volume and density continue to improve as stronger strands grow in.
Our Redensify Reset Shampoo is formulated to be gentle and does not contain ingredients commonly avoided during pregnancy or breastfeeding. However, we always recommend checking with your healthcare provider before starting any new personal care product. Our Redensify Treatment Serum contains ingredients such as a retinoid and saw palmetto, so it should not be used during pregnancy or while breastfeeding.
We are happy to report the answer is no! Kerativ formulas were specifically designed for fine and thinning hair, where heavy products can easily weigh hair down. The lightweight textures absorb quickly and provide hydration without leaving a greasy or oily residue on the scalp or hair.
Applying to a clean scalp is ideal, as it allows the formula to reach the scalp more easily without being blocked by excess oil or buildup. However, consistency matters most. The Redensify Treatment Serum was designed to fit easily into your routine, so it can also be applied between washes to desired areas, even if you use styling products or wash your hair less frequently.
With typical daily use, one tube usually lasts about 6 weeks. The formula is designed to be applied directly to thinning areas, so a small amount goes a long way.
Reviews
- CMChelsey M.Verified BuyerReviewingRedensify Treatment SerumI recommend this productRated 5 out of 5 stars1 month agoLeaves no trace
Convenient to use, doesn't leave a sticky residue or stiff feeling hair. No strong scent, no itching after application. My alopecia spots are filling in after 5 weeks already.
- TCTracy c.Verified BuyerReviewingRedensify Treatment SerumI recommend this productRated 4 out of 5 stars1 month agoMore density
I’m on my second bottle and I’ve seen my part get fuller over a months time of regular use. I use every evening before bed and split my hair in 5 sections and go front to back with a small line of product. So far I’m impressed with the results!
- JJillVerified ReviewerReviewingRedensify Treatment SerumRated 3 out of 5 starsYesterdayBigger quantity or proper duration prediction needed
Since the beginning of May till now, I’ve gone through 6 bottles and haven’t noticed a significant change in density but I’m staying patient. I’m still shedding but I think less. My biggest issue at the moment is that I don’t feel like the quantity is properly reflected in estimated length of use. And this was me only using it once a night before bed and not squeezing that hard. I have since tried to squeeze even lighter in hopes of seeing if the bottle actually lasts as long as it’s advertised but I feel like it’s still quite a stretch. Anyone else notice this?! Realistically, it’s quite expensive (especially for a Canadian) and not sure how sustainable it is to keep purchasing when the bottle runs dry so fast.
KKerativ20 hours agoHi Jill,
Thank you for sharing such thoughtful and honest feedback.
Some may notice temporary shedding when starting a new hair-care routine. This can happen as hairs that were already in the resting phase are released and new growth cycles begin. This phase is typically temporary and is a part of the natural hair cycle.
We also completely understand your concern about how long each bottle lasts. The approximately six-week duration is based on our clinical study, in which one tube lasted six weeks with twice-daily application. However, the actual duration can vary from person to person depending on the size of the area being treated and the amount of serum needed with each application.
We understand that this can feel like a significant consideration when planning for continued use, and we appreciate you sharing your experience. Your feedback is incredibly valuable to us as we continue to ensure we’re setting clear expectations around product usage.
Thank you again for your patience, your thoughtful feedback, and for continuing to give the product a chance. We’re rooting for you as you continue your hair-care journey!
- KBKhanak B.Verified BuyerReviewingRedensify Treatment SerumRated 3 out of 5 stars5 days agoMixed feelings so far
Giving it 3 stars for now since I haven’t personally seen any difference and been using for over 2 months. Granted, I do not apply it twice a day so that could be the reason. It is advertised as a 6 weeks treatment but I don’t think there is enough product to last that long if you apply twice a day on affected areas. I’m a grad student so this is way out of my budget and I certainly can not afford to apply twice a day and then order another pack before 6 weeks end. I guess that’s on me. I hope it works for others who can afford to apply it twice a day as I genuinely think it has potential.
KKerativYesterdayHi Khanak,
Thank you so much for taking the time to share your experience and feedback. We truly appreciate you giving Kerativ a try and sharing your honest perspective.
We also want to clarify that the approximately six-week duration is based on our clinical study, where one tube lasted six weeks with twice-daily application. However, the length of time a tube lasts can vary from person to person depending on the size of the area being treated and the amount of serum used with each application.
We also recognize that everyone’s hair and scalp journey is different, and visible changes can take time. We appreciate your thoughtful feedback and your note that you see potential in the product. We’re grateful you gave Kerativ a chance, and we wish you the best on your continued hair-care journey.
- EPElizabeth P.Verified BuyerReviewingRedensify Treatment SerumI recommend this productRated 5 out of 5 stars1 week agoLots of baby hairs!
I have been using the Kerativ serum twice a day for 8 weeks. When I apply the Kerativ serum on my hair, it is so light that it does not flatten the styling of my hair. I really appreciate that attribute. I already see lots of new baby hairs, and I can’t wait to see the final outcome in a month!