1 / 7RIMSOO Hair Thickening Scalp Serum, 50ml
RIMSOO Hair Thickening Scalp Serum is a 50ml leave-in treatment formulated with peptides, caffeine, niacinamide, and botanical extracts. It is intended for evening scalp application and calls for consistent daily use over 8–12 weeks.
At a glance
- Lists four peptide complexes and Copper Tripeptide-1 for scalp care and a fuller-looking hair appearance.
- Includes 0.5% caffeine, 2% niacinamide, and six botanical extracts.
- Water-based leave-in formula is described as lightweight and non-greasy, with no rinsing required.
- Directions call for 3–5 drops each evening on a clean, dry scalp.
Reference price: $29.99
Price checked: Nov 12, 2026
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Pros and cons
Pros
- Leave-in evening application avoids a rinse step.
- The listed formula combines peptides, humectants, caffeine, niacinamide, and botanical extracts.
- The listing describes it as suitable for fine, oily, or chemically treated hair.
Technical specifications
7 specifications| Brand | RIMSOO |
|---|
| Package volume | 50ml/1.69 fl oz |
|---|---|
| Dimensions listed | 2.01 x 2.01 x 3.98 inches; 7.36 ounces |
| Caffeine | 0.5% Caffeine |
|---|---|
| Niacinamide | 2% Niacinamide |
| Application | Apply 3–5 drops directly to a clean, dry scalp each evening. Gently massage with fingertips until absorbed. This leave-in formula requires no rinsing |
| Suggested routine | Consistent daily application over 8–12 weeks |
What to know before buying
- The listing presents thicker-looking hair and scalp-care benefits as formula claims, not guaranteed outcomes. It recommends consistent daily use for 8–12 weeks.
Who is it for?
A good fit for
- People seeking a leave-in scalp serum with a nightly application routine.
- Buyers looking for a lightweight scalp formula and who are comfortable with a multi-week daily routine.
- Those interested in a formula listing peptides, caffeine, niacinamide, and botanical extracts.
Less suited to
- People who want an immediate rinse-out treatment or a product with a stated one-time-use result.
- People seeking a documented clinical treatment for hair loss, which this listing does not establish.
Customer reviews on Amazon
- 5 stars
93% 93% - 4 stars
7% 7% - 3 stars
0% 0% - 2 stars
0% 0% - 1 star
0% 0%
Aggregate ratings are strongly positive, with most ratings in the five-star category. They do not explain what buyers liked or establish performance, so treat them as a limited signal rather than evidence that the serum will produce fuller-looking hair. The stated daily, multi-week routine matters for anyone considering whether this format fits their expectations.
Frequently asked questions
How is the RIMSOO scalp serum applied?
The directions say to apply 3–5 drops to a clean, dry scalp each evening, massage gently until absorbed, and leave it in without rinsing.
How long does the suggested routine last?
The listing recommends consistent daily use over 8–12 weeks for its scalp-care routine. It does not guarantee a particular result.
What notable ingredients does the listing name?
It lists four peptide complexes including Copper Tripeptide-1, 0.5% caffeine, 2% niacinamide, and six botanical extracts.
Is it described as suitable for fine or oily hair?
Yes. The listing describes its water-based formula as lightweight and non-greasy and says it is suitable for fine, oily, or chemically treated hair.
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