Bloom Trial Report
We tested Bloom on 43 Malaysian women, across 3 cycles each.
Here's what we asked, what we measured, and what we found.
82%
of women reduced their painkiller use during PMS week
78%
reported less cramp severity by their second cycle
40 out of 43
said they'd recommend Bloom to a friend
What We Wanted to Know
We built Bloom around a specific claim: that PMS cramps come from three pathways acting together — inflammation, muscle tension, and a hormone dip in the days before bleeding — and that addressing all three would help more than addressing one.
Before we sold a single bottle, we wanted to know if women who took Bloom every day, for three full cycles, would actually feel a difference. Not whether the ingredients work in a lab. Whether real Malaysian women, with real periods, would notice anything change.
So we sent Bloom to 43 women and asked them.
Who Took Part
We recruited 43 women. Everyone in the group had been managing PMS cramps for at least two years. Most had been taking painkillers regularly. None had taken a supplement specifically for PMS before.
Sample size — 43 women
Age range — 26-45
Location — Malaysia (urban)
Duration — 3 cycles (~3 months)
Dosing — 2 capsules daily
Compensation — Free product only
Started — June 2025
Completed — August 2025
What they were asked to do
Each woman followed the same protocol across three menstrual cycles:
Daily dosing. Take 2 capsules of Bloom every morning with food. No skipping, no cycling on and off.
Three cycles. Continue daily dosing for a full three menstrual cycles before drawing any conclusions.
End of each cycle. Complete a short check-in covering cramp severity, bloating, mood, days lost to PMS, painkiller use, and overall experience.
That's it. We didn't ask anyone to change their diet, their exercise, or their other medications. We wanted to see what Bloom alone changed.
We chose three cycles because most of the ingredients in Bloom — particularly turmeric, magnesium, and vitamin D — work cumulatively. They don't switch on overnight. We wanted enough time for a real signal to show up, not a one-month placebo bump.
What we found
Painkiller use during PMS week
Before Bloom, women in the group reported taking an average of 3.2 painkillers per cycle. By cycle 3 on Bloom, the average dropped to 1.4 — a 56% reduction.
18 women stopped entirely, 16 took fewer but still used some on worst days, 9 saw no meaningful change
Cramp severity
We asked women to rate their worst cramp pain each cycle on a scale of 1 to 10, where 10 was "couldn't function." Average pre-Bloom score: 7.1. Average score by cycle 3 on Bloom: 3.8.
That's roughly a 46% reduction in self-reported cramp severity across the group. Most of the change showed up in cycle 2 and held in cycle 3.
Bloating
Bloating was the most subjective metric to capture, so we kept the question simple: "Compared to your usual PMS week, how does the bloating feel this cycle?" Options were worse, same, slightly better, noticeably better, gone.
By cycle 3, 71% reported "slightly better" or "noticeably better." 18% reported no change. 3 reported it felt worse — we asked follow-up questions and the likeliest explanation was diet during that cycle, but we can't say for sure.
Mood and functionality
We asked women how many days per cycle they "lost" to PMS — defined as days where they cancelled plans, missed work, or couldn't function as they normally would.
Pre-Bloom average: 4.8 days per cycle. Cycle 3 average: 1.2 days. That's roughly 3.6 days back per month for the average woman in the pilot.
Mood changes were harder to measure cleanly, but 81% of the group described their PMS-week mood as "more like myself" or "less spiral-y" by cycle 3.
Net recommendation
At the end of the pilot, we asked one question: "Would you recommend Bloom to a friend who deals with PMS cramps?"
40 of 43 said yes. 2 said maybe. 1 said no.
This is the metric we cared most about. Cramp scores can move for all sorts of reasons. Whether someone would actually tell a friend to try Bloom is a different bar.
Did they want to keep taking it
The other end-of-pilot question: "Do you want to keep taking Bloom after the pilot ends?"
84% (36 of 43) said yes and 29 of those have since become paying subscribers. 9% (4) said no. 7% (3) said maybe — wanted more time to decide.
In Their Words...
Verbatim quotes from the pilot group, lightly edited for length.
"I didn't think a supplement could actually do something. By cycle 2 I actually forgot to take my painkiller because I didn't need it."
Wei Ling, 29, KL
"The bloating was the thing I didn't expect to improve. My jeans fit normally that week for the first time in years."
Priya, 34, Shah Alam
"I used to cancel plans every month without fail. Last cycle I made it to my friend's wedding and actually enjoyed it."
Nurul, 31, Penang
What this means for you
If you're considering Bloom, here's what we'd honestly say:
Most women in our pilot felt a meaningful difference by their second or third cycle. Not their first. If you try Bloom and don't feel anything in your first cycle, that's expected — Bloom isn't a painkiller and doesn't work like one. It works by supporting your body cumulatively, every day, across multiple cycles.
Try it for 2-3 cycles. See what happens. That's the most honest pitch we can make.
References
Bloom's formulation is built on peer-reviewed studies of each active ingredient. Selected references:
On curcumin (turmeric) and PMS / dysmenorrhea
- Khayat S, et al. (2015). Curcumin attenuates severity of premenstrual syndrome symptoms: A randomized, double-blind, placebo-controlled trial. Complementary Therapies in Medicine, 23(3), 318–324. pubmed.ncbi.nlm.nih.gov/26051565
- Bahrami A, et al. (2021). Effect of curcumin on inflammatory biomarkers and iron profile in patients with premenstrual syndrome and dysmenorrhea: A randomized controlled trial. Physiological Reports. pmc.ncbi.nlm.nih.gov/articles/PMC10315327
- Bahari H, et al. (2025). Curcumin, a bioactive supplement for premenstrual syndrome and dysmenorrhea: A systematic review of randomised clinical trials. (Systematic review of 10 RCTs.) pmc.ncbi.nlm.nih.gov/articles/PMC12639325
On ginger (Zingiber officinale) and dysmenorrhea
- Rahnama P, et al. (2012). Effect of Zingiber officinale R. rhizomes (ginger) on pain relief in primary dysmenorrhea: a placebo randomized trial. BMC Complementary and Alternative Medicine, 12, 92. pubmed.ncbi.nlm.nih.gov/22781186
- Chen CX, Barrett B, Kwekkeboom KL. (2016). Efficacy of Oral Ginger (Zingiber officinale) for Dysmenorrhea: A Systematic Review and Meta-Analysis. Evidence-Based Complementary and Alternative Medicine. pmc.ncbi.nlm.nih.gov/articles/PMC4871956
On magnesium and menstrual pain
- Parazzini F, Di Martino M, Pellegrino P. (2017). Magnesium in the gynecological practice: a literature review. Magnesium Research, 30(1), 1–7. (Reviews magnesium for PMS, dysmenorrhea, and postmenopausal symptoms.)
- Yaralizadeh M, et al. (2024). Effectiveness of Magnesium on Menstrual Symptoms Among Dysmenorrheal College Students: A Randomized Controlled Trial. International Journal of Women's Health and Reproduction Sciences, 12(2). ijwhr.net/pdf/pdf_IJWHR_624.pdf
- Saei Ghare Naz M, et al. (2020). The Effect of Micronutrients on Pain Management of Primary Dysmenorrhea: a Systematic Review and Meta-Analysis. Journal of Caring Sciences, 9(1), 47–56. pmc.ncbi.nlm.nih.gov/articles/PMC7146731
On vitamin D and PMS / dysmenorrhea
- Hosseini MS, et al. (2025). Effect of vitamin D and E supplementation on pain relief and premenstrual symptoms in primary dysmenorrhea: a randomized controlled trial. BMC Women's Health. pmc.ncbi.nlm.nih.gov/articles/PMC12481977
- Heidari H, et al. (2019). Vitamin D Supplementation for Premenstrual Syndrome-Related inflammation and antioxidant markers in students with vitamin D deficient: a randomized clinical trial. Scientific Reports. pubmed.ncbi.nlm.nih.gov/31624297