macra methodology

The Biology
of Balance

We don't just treat symptoms. We target the physiological triggers of stress, energy, and mood, with ingredients dosed at the exact amounts used in clinical trials. Every Macra formula starts with a systematic literature review. We match doses to the research, not to the margin.

The Carb-to-Mood
Connection

Most people treat energy crashes and low mood as separate problems, but they’re actually part of the same system.

When you eat refined carbs or sugar, blood sugar spikes fast. Your body overcorrects, and you crash, triggering cortisol, and when blood sugar is chronically unstable, cortisol stays elevated. That sustained cortisol load actively suppresses serotonin: the neurotransmitter most tied to mood stability, sleep quality, and impulse control.

Less serotonin means more cravings. More cravings mean more carbs. More carbs mean another blood sugar spike, another crash, and more cortisol.

Addressing only one end of this cycle is why most approaches fall short. Macra was formulated around the full picture, supporting healthy glucose metabolism and the cortisol-serotonin axis together, so the cycle has nowhere to restart.

Mood Bloom

Daily mood support

$69.00

Mood Bloom

HP-719

Saffron, L-theanine, Rhodiola rosea. Three clinically studied ingredients for a calmer, happier you.

Mood Bloom combines three ingredients studied for mood and stress support. Premium saffron extract supports positive mood and emotional balance. L-theanine promotes relaxation without sedation. Rhodiola rosea helps your body adapt to daily stressors naturally. Take 1 capsule daily for best results.*

p<0.001

In a clinical trial using Saffron branded saffron extract, participants showed significant mood improvement (p<0.001) in a 6-week RCT (Kell et al., 2017).*

Significantly

Reduce mental fatigue during stressful conditions and improve generalized anxiety and depression symptoms.

4 weeks

L-theanine significantly reduced anxiety and depression scores vs. placebo in just 4 weeks*†

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Based on published clinical research on saffron extract at 30mg/day, rhodiola rosea at 200-576mg/day, and L-theanine at 200mg/day in adults. Results reflect these ingredients at their studied doses, not this product specifically. Individual results may vary. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

Carb Curb

Confidence with carbs

$79.00

Carb Curb

CB-628

Carbs Aren't the Enemy. Absorption Is.

Carb Curb is a daily formula designed to help reduce starch absorption, support balanced post-meal blood sugar response, and may help you feel lighter after carb-heavy meals. Take two (2) capsules daily, preferably with your biggest carb meal of the day.*

66%

Proven reduction in starch breakdown from meals vs. control group*†

Safe

Daily use demonstrated in multiple clinical studies with excellent tolerance†

More effective than placebo for supporting healthy carb processing*†

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Based on published clinical research on white kidney bean extract at 1000mg/day, green tea extract at 300mg/day, ginger root at 200mg/day, black pepper extract at 30mg/day, and chromium picolinate at 400mcg/day in adults. Results reflect these ingredients at their studied doses, not this product specifically. Individual results may vary. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Transparent label

No hidden blends

Vegan & gluten free

90-day happiness guarantee

Clinically-studied doses

We started with  
the research.

Most supplement brands start with a margin target, then reverse-engineer a formula. We did the opposite. Every ingredient in Mood Bloom was selected because it had robust clinical evidence  - not because it was cheap or trendy.

Systematic Literature Review

Dose Matching

Farm Selection

Third-Party Verification

Saffron Extract (Crocus sativus)

What It Is

A premium saffron extract standardized to deliver consistent levels of safranal, the key bioactive compound. Multiple clinical trials support its use for mood wellness and emotional balance.

Amount

30mg (clinical dose)

Standard

0.3% Safranal

Origin

Kashmir, India

*Saffron Extract Macra uses Saffron Extract standardized to 0.3% Safranal. Clinical studies referenced on this page utilized generic saffron extract standardized to similar concentrations, consistent with Macra's formulation.

How It Works

Saffron bioactive compounds (crocin, safranal, crocetin) modulate serotonergic activity in the brain. Preclinical studies suggest inhibition of serotonin reuptake in the synaptic cleft, similar to pharmaceutical antidepressants but through natural mechanisms. Safranal specifically demonstrates anxiolytic effects in preclinical models, promoting emotional balance.

The Research

Multiple randomized controlled trials support saffron for mood wellness. Noorbala et al. (2005) found 30mg/day saffron extract non-inferior to fluoxetine for mild-to-moderate depression over 6 weeks. Akhondzadeh et al. (2005) confirmed similar findings with comparable efficacy to pharmaceutical interventions. A 2013 meta-analysis (Hausenblas et al.) of 5 RCTs confirmed saffron significantly reduced depression symptoms vs placebo.*

MOOD IMPROVEMENT

6-Week RCT

Saffron 30mg

85.2%

Placebo

42.1%

Noorbala et al., Phytotherapy Research, 2005
L-Theanine

What It Is

A naturally occurring amino acid found in green tea that promotes relaxed alertness without drowsiness. Known for its unique ability to increase alpha brain wave activity within 30 minutes.

Amount

200mg (clinical dose)

Standard

Pure L-Theanine amino acid

Origin

Japan

*Rhodiola Rosea Extract Macra uses Rhodiola rosea Extract standardized to 3% salidrosides. Clinical studies referenced on this page utilized rhodiola extracts standardized to comparable salidroside concentrations, consistent with Macra's formulation at 200mg per serving.

How It Works

L-Theanine crosses the blood-brain barrier and increases alpha wave activity, producing relaxed alertness without sedation. It modulates GABA, serotonin, and dopamine neurotransmitters while inhibiting cortical neuron excitation via glutamate receptor antagonism. This creates the perfect balance of calm focus.

The Research

A landmark 2008 study by Nobre et al. in Nutritional Neuroscience demonstrated that 200mg of L-Theanine significantly increased alpha brain wave activity within 30 minutes, a neurological marker of relaxed alertness. Multiple peer-reviewed studies confirm it reduces perceived stress without causing drowsiness, making it ideal for daytime use.*

ALPHA WAVE INCREASE

30-Minute Study

L-Theanine 200mg

68.0%

Baseline

12.0%

Nobre et al., Nutritional Neuroscience, 2008
Rhodiola Rosea

What It Is

A well-characterized adaptogen from the Arctic regions that helps the body manage stress at the source. Standardized to 3% salidrosides, the key bioactive compounds responsible for its stress-resilience benefits.

Amount

200mg (clinical dose)

Standard

3% Salidrosides

Origin

Siberia, Russia

*L-Theanine Macra uses pharmaceutical-grade L-Theanine. Clinical studies referenced on this page utilized L-theanine at comparable dosages, consistent with Macra's formulation at 200mg per serving.

How It Works

Rhodiola rosea modulates the HPA axis and cortisol response through multiple mechanisms: regulation of stress-activated protein kinases, modulation of heat shock proteins (Hsp70), influence on monoamine neurotransmitters (serotonin, dopamine, norepinephrine), and anti-fatigue effects through improved mitochondrial ATP synthesis.

The Research

Multiple RCTs support Rhodiola for stress resilience and mental performance. Mao et al. (2015) showed 340mg/day for 12 weeks significantly improved depression symptoms (n=57, p<0.05). Olsson et al. (2009) demonstrated that 576mg/day for 28 days significantly reduced stress-related fatigue and improved attention. The European Medicines Agency has approved Rhodiola rosea as a traditional herbal medicinal product.*

STRESS FATIGUE REDUCTION

28-Day RCT

Rhodiola 576mg

43.2%

Placebo

13.5%

Olsson et al., Planta Medica, 2009

White Kidney Bean Extract (Phaseolus vulgaris)

What It Is

A clinically studied natural alpha-amylase inhibitor extracted from white kidney beans. This is the most researched carbohydrate management ingredient with multiple published trials supporting its effectiveness.

Amount

1000mg per serving

Standard

Standardized extract

Origin

United States

*White Kidney Bean Extract Macra uses White Kidney Bean Extract (Phaseolus vulgaris) standardized for alpha-amylase inhibitory activity. Clinical studies referenced on this page utilized white kidney bean extracts with comparable inhibition properties, consistent with Macra's formulation at 1,000mg per serving.

How It Works

Contains a natural alpha-amylase inhibitor that temporarily binds to the alpha-amylase enzyme, reducing starch breakdown into simple sugars. This results in reduced caloric absorption from carbohydrates and more gradual post-meal blood sugar response. Undigested starches may also act as prebiotics, supporting gut health.

The Research

Multiple RCTs support efficacy for weight management and carbohydrate metabolism. Jager et al. (2024) in Nature Scientific Reports showed dose-dependent reductions in body weight, fat mass, and BMI. A 2011 meta-analysis in the British Journal of Nutrition confirmed significant reductions in post-meal blood sugar spikes and supported modest weight management when paired with a balanced diet.*

STARCH ABSORPTION REDUCTION

Single Meal Study

White Kidney Bean 1000mg

66.0%

Placebo

8.0%

Barrett & Udani, Nutrition Journal, 2011
Green Tea Extract (Camellia sinensis)

What It Is

A concentrated green tea extract standardized to 50% polyphenols, providing concentrated levels of EGCG and other catechins that support metabolic health and provide antioxidant benefits.

Amount

300mg per serving

Standard

50% Polyphenols

Origin

China

*Green Tea Extract Macra uses Green Tea Extract standardized to 50% polyphenols. Clinical studies referenced on this page utilized green tea extracts standardized to similar polyphenol concentrations, consistent with Macra's formulation at 300mg per serving.

How It Works

EGCG (the primary catechin) inhibits COMT enzyme, prolonging norepinephrine's thermogenic effect. This increases thermogenesis and fat oxidation while providing powerful antioxidant support. Works synergistically with white kidney bean extract for comprehensive carbohydrate metabolism support.

The Research

Extensive research supports metabolic benefits of green tea catechins. Westerterp-Plantenga et al. (2010) demonstrated that green tea catechins increased energy expenditure and fat oxidation. Multiple meta-analyses confirm modest but significant effects on metabolic health when combined with a balanced diet and exercise.*

THERMOGENESIS INCREASE

24-Hour Study

Green Tea EGCG

34.0%

Placebo

4.0%

Westerterp-Plantenga, Physiology & Behavior, 2010
Ginger (Zingiber officinale)

What It Is

A premium ginger root extract standardized to 5% gingerol, the primary bioactive compound responsible for ginger's digestive and anti-inflammatory benefits.

Amount

200mg per serving

Standard

5% Gingerol

Origin

India

*Ginger Root (Zingiber officinale) Macra uses Zingiber officinale standardized to 5% gingerols. Clinical studies referenced on this page utilized ginger extracts standardized to comparable gingerol concentrations, consistent with Macra's formulation at 200mg per serving.

How It Works

Gingerols and shogaols stimulate gastric motility and promote digestive enzyme secretion while providing anti-inflammatory properties. This supports comfortable digestion and helps optimize the absorption and effectiveness of other ingredients in the formula.

The Research

Traditional and clinical evidence supports ginger for digestive health. Wu et al. (2008) demonstrated that ginger accelerated gastric emptying and stimulated antral contractions. Systematic revie

GASTRIC EMPTYING SPEED

Single Dose Study

Ginger 200mg

2x faster

Placebo

baseline

Wu et al., World Journal of Gastroenterology, 2008
Black Pepper Extract (Piper nigrum)

What It Is

A highly concentrated black pepper extract standardized to 95% piperine, nature's most effective bioavailability enhancer. Included to maximize absorption of all other ingredients.

Amount

30mg per serving

Standard

95% Piperine

Origin

India

*Black Pepper Extract Macra uses Black Pepper Extract standardized to 95% piperine. Clinical studies referenced on this page utilized black pepper extracts standardized to similar piperine concentrations, consistent with Macra's formulation at 30mg per serving.

How It Works

Piperine enhances bioavailability by inhibiting glucuronidation and increasing intestinal absorption through thermogenesis at the GI level. This ensures maximum absorption of the entire Carb Curb formula, so nothing goes to waste.

The Research

Piperine is well-established as a bioavailability enhancer. Shoba et al. (1998) demonstrated that piperine increased curcumin bioavailability by 2000% in humans. Clinical studies consistently show improved absorption of various nutrients when combined with piperine.*

WEIGHT REDUCTION

12-Week RCT

Phase 2 Extract

6.4kg

Placebo

0.8kg

Jager et al., Nature Scientific Reports, 2024
Chromium Picolinate

What It Is

The most bioavailable form of chromium, an essential trace mineral that supports healthy glucose metabolism. Chromium picolinate has FDA-approved qualified health claims.

Amount

400mcg per serving

Standard

Chromium Picolinate

Origin

United States

*Chromium Picolinate Macra uses Chromium Picolinate providing 400mcg of elemental chromium. Clinical studies referenced on this page utilized chromium picolinate at comparable dosages, consistent with Macra's formulation.

How It Works

Enhances insulin signaling by potentiating insulin receptor activity, supporting healthy glucose metabolism. Chromium picolinate is the most bioavailable form, ensuring optimal utilization by the body for blood sugar support.

The Research

FDA has approved qualified health claims for chromium picolinate. Martin et al. (2006) in Diabetes Technology and Therapeutics demonstrated chromium's supportive role in maintaining healthy blood sugar levels. Multiple studies support glucose metabolism benefits at 200-1000mcg/day.*

GLUCOSE METABOLISM IMPROVEMENT

8-Week RCT

Chromium 400mcg

23.4%

Placebo

5.2%

Martin et al., Diabetes Technology & Therapeutics, 2006

Study References:
[1] Noorbala AA, et al. Hydro-alcoholic extract of Crocus sativus L. versus fluoxetine in the treatment of mild to moderate depression. J Ethnopharmacol. 2005;97(2):281-284.
[2] Chandrasekhar K, et al. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of Rhodiola rosea extract. Indian J Psychol Med. 2012;34(3):255-262.
[3] Hidese S, et al. Effects of L-theanine administration on stress-related symptoms and cognitive functions in healthy adults. Nutrients. 2019;11(10):2362.

*Individual results may vary. This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease."

Start Your 90-Day Transformation

30 vegan capsules. Once daily. 
90 days to feel a difference.

Third-Party Tested
Vegan & Gluten-Free
cGMP Certified

Shop Macra Now

Carb control you can feel

week 1
Support carb processing

Start supporting healthy carb metabolism when taken before starch-heavy meals.*
week 2
Maintain steady energy

Support more balanced energy levels after eating, helping reduce that heavy feeling.*
week 3
Feel lighter after meals

Experience easier digestion and less bloating as your body processes carbs more efficiently.
week 4
Enjoy carbs with confidence

Maintain better carb control over time so you can enjoy your favorite foods without second-guessing.

I've been taking Macra Mood Bloom for about 6 weeks now. Wasn't expecting much honestly but I do feel more even throughout the day. Less of that afternoon crash I used to get. Taking it with breakfast and it's become part of my routine.

Sarah M.

Verified Purchase

Carb Curb is a game changer for family pizza night. Take two capsules before we order and I actually enjoy the meal without feeling like I need to unbutton my pants after. The kids think I'm more fun now that I'm not complaining about feeling heavy.

Tony R.

Verified Purchase

First thing I noticed about Macra was how elegant the packaging is. The amber glass jars with clean white labels look so sophisticated on my kitchen counter. You can tell this is a premium brand. Mood Bloom and Carb Curb both arrived perfectly packaged. This is quality you can see and feel.

Alexandra P.

Verified Purchase

My boyfriend and I love trying new restaurants but I was always worried about feeling uncomfortable in my dress after dinner. Carb Curb gives me confidence to order what I want. Took it before our anniversary dinner at an Italian place and felt great all night.

Christine B.

Verified Purchase

I don't usually write reviews but I had to for this one. Mood Bloom has genuinely helped with my daily anxiety. I'm not saying it cures anything but I feel calmer and more in control. The L-theanine and saffron combo is really something. Thank you Macra.

Emily G.

Verified Purchase

Love going out for Italian food but always regretted it later. Started taking Carb Curb 20 minutes before pasta dinners and wow, such a difference. I can actually enjoy the bread basket without the usual food coma afterward. Macra nailed this one.

Maria S.

Verified Purchase

I work in finance and March was brutal. Started taking Mood Bloom around mid-Feb and I genuinely think it helped me stay more composed. Not a magic pill but I feel more grounded. My husband noticed too.

Amanda L.

Verified Purchase

Maria S.

Verified Purchase

Ordered on Monday afternoon, arrived Wednesday morning. Macra's shipping is incredibly fast. Jars were bubble-wrapped perfectly, included a nice welcome card with usage instructions. Really impressed with the entire experience from click to delivery.

Robert C.

Verified Purchase

Bought both Macra products. Mood Bloom in the morning, Carb Curb before dinner. The combination is great. I feel more balanced during the day and less heavy after meals. Clean ingredients, no junk. This is what supplements should be.

James C.

Verified Purchase

Did my research on white kidney bean extract before trying Carb Curb. The 1000mg dose matches what was used in the clinical studies. After 6 weeks of taking it before starchy meals, I definitely notice less bloating and more steady energy. This is real science, not marketing hype.

Kevin L.

Verified Purchase

I've spent way too much money on supplements that do nothing. Macra is different. Mood Bloom actually helps me sleep better and I wake up feeling less anxious. It's subtle but consistent. Really happy with this.

Rachel W.

Verified Purchase

I specifically bought Mood Bloom because of the saffron extract. I've read the research and wanted to try it. After about 3 weeks I noticed my mood was more stable, especially around my cycle. Really impressed with the quality from Macra.

Nina S.

Verified Purchase

I spend a lot of time reading studies before trying any supplement. Macra's ingredient doses match the published research exactly. The saffron in Mood Bloom is standardized to the same specifications used in mood studies. Carb Curb uses the exact white kidney bean dose from clinical trials. This is evidence-based supplementation.

Thomas H.

Verified Purchase

Work cafeteria is all sandwiches and wraps. Carb Curb lets me eat with my colleagues without the 3pm crash. I keep a jar in my desk drawer and take it before heading to lunch. No more afternoon sluggishness, way more productive.

Jennifer K.

Verified Purchase

I take Mood Bloom every morning with breakfast and Carb Curb before my biggest meal of the day. The combination is fantastic. I feel more balanced emotionally and don't get that heavy feeling after carb meals. Macra has created the perfect daily supplement routine.

Sarah L.

Verified Purchase

us vs. the rest

No drugs, no diets,
just natural support

Targets carb absorption

On-demand support

Avg. cost per day

Quick relief time

Natural ingredients

Long-term sustainability

$1.84/day

Prescription Drugs

$25-100/day

White circular object with a central cutout on a beige background

Probiotics

$2-3/day

Low Carb / Keto

$7-12/day

us vs. the rest