Cold Processed®
Scalp Discovery Set
Rated 4.7 out of 5 stars
1,227 Reviews
Click to scroll to reviewsAward-winning, clinically studied scalp serums — one for every concern. Act+Acre's trichologist-formulated serums promote thicker-looking hair, restore scalp hydration, soothe scalp discomfort, and balance oil. Cold Processed®️ below 40°C, no rinse. Your trichologist in a box.
+ Stem Cell Scalp Serum | 0.5 oz
+ Daily Hydro Scalp Serum | 0.5 oz
+ Scalp Relief Cooling Serum | 0.5 oz
+ Oily Scalp Serum | 0.5 oz
Why You Need This
soothing
balancing
nourishing
Consumer Testing
49%
decrease hair shedding by 49% in 6 weeks*
100%
agree scalp feels hydrated after 24 hours**
90%
agree serum relieved scalp discomfort†
96%
agree that they could extend time in between washes††
*Stem Cell: Based on consumer perception results from a 6-week third-party clinical study of 30 women aged 18–59, daily use of the product was shown to support hair regrowth following acute telogen effluvium
**Daily Hydro: In an independent consumer trial conducted by Act+Acre with 22 participants over 8 weeks
†Scalp Relief: In a consumer panel conducted by Act+Acre with 10 participants over 14 days. Women + Men with Dandruff, Scalp Psoriasis, Scalp Eczema, Seborrheic Dermatitis, and general flaking.
††Oily Scalp: In an independent consumer trial conducted by Act+Acre with 20 participants over 2 weeks
**Daily Hydro: In an independent consumer trial conducted by Act+Acre with 22 participants over 8 weeks
†Scalp Relief: In a consumer panel conducted by Act+Acre with 10 participants over 14 days. Women + Men with Dandruff, Scalp Psoriasis, Scalp Eczema, Seborrheic Dermatitis, and general flaking.
††Oily Scalp: In an independent consumer trial conducted by Act+Acre with 20 participants over 2 weeks
Best For
Scalp Type
dry
normal
oily
Hair Texture
straight
wavy
curly
coily
Concerns
hair loss + thinning
dryness + irritation
lack of volume
Ingredients
Swiss Apple Stem Cell Complex
Supports hair follicle health for thicker, fuller-looking hair
Multi-Molecular Hyaluronic Acid (MMHA)
Penetrates surface layers of the skin to hydrate the scalp, soothe dryness + retain moisture
Amino M³ Complex™
Bioactive blend formulated to help support a balanced scalp microbiome and reduce the appearance of flaking
Niacinamide (4%)
Topical vitamin B3 that helps visibly balance scalp sebum levels
FAQ
Which serum is right for me?
Your scalp’s needs can shift based on your environment, routine, and lifestyle, so the right serum may change day to day. We recommend:
Stem Cell Scalp Serum™ for thinning or shedding
Daily Hydro™ Scalp Serum for dryness or dehydration
Scalp Relief Cooling Serum for itch, flakes, or irritation
Oily Scalp Serum for excess oil or greasy roots
The Discovery Set is designed to help you understand what your scalp needs over time—and adjust your routine as those needs evolve.
Can I use more than one serum at a time?
Yes! Our serums are designed to work together, so you can layer or alternate them depending on what your scalp needs. If you’re experiencing multiple concerns, applying different serums to different areas of the scalp can also be helpful.
How long will it take to see results?
Consistency is key to seeing results, which is why we recommend applying daily. Soothing relief can often be felt almost immediately, hydration is typically noticeable within the first week, and oil balance improves over time with continued use. For visible improvements in hair fullness, strength, and reduced shedding, we recommend consistent use for at least 60–90 days.
How does this fit into my routine?
We recommend applying a few drops directly to a clean, damp or dry scalp, after washing or between wash days. Gently massage for 1–2 minutes to help the formula absorb. Do not rinse. Style as usual. Use daily for best results.
How to Use: Apply a few drops directly to your clean, dry or damp scalp.
Gently massage for 1–2 minutes to boost absorption and circulation.
Do not rinse—style as usual.
Repeat daily for best results.
Gently massage for 1–2 minutes to boost absorption and circulation.
Do not rinse—style as usual.
Repeat daily for best results.