Sierra Life Sciences · Santa Rosa, California
Precision formulated.Performance driven.
Research-led supplements for sleep, longevity, recovery and hormonal balance — formulated, made and tested in our own cGMP facility, then shipped direct to you.
- Made in the USA
- Vegan capsules
- Subscribe & save 15%
Who we are
Science you can trace back to one building.
Sierra Life Sciences is a supplement maker, not just a label. Every formula is developed, blended, encapsulated and packaged at our own cGMP facility in Santa Rosa, California — the same place it ships from.
Owning every step is what lets us keep ingredient lists short and doses exact, test each batch before it leaves, and stand behind every bottle with a 30-day money-back guarantee.
Shop by goal
Focused formulas. One standard.
Short ingredient lists, clinically studied ingredients and nothing you don't need.
Sleep & circadian rhythm
Melatonin capsules, gummies and pure powder.*
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Longevity & cellular energy
NMN and acetyl-L-carnitine for NAD+ and energy support.*
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Muscle & recovery
Magnesium glycinate, creatine, beet root and MSM.*
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Women's health
Vitex, DIM and Shatavari for hormonal balance.*
Shop women's healthShop by goal
Focused formulas. One standard.
Short ingredient lists, clinically studied ingredients and nothing you don't need.
Sleep & circadian rhythm
Melatonin capsules, gummies and pure powder.*
Shop sleepLongevity & cellular energy
NMN and acetyl-L-carnitine for NAD+ and energy support.*
Shop longevityMuscle & recovery
Magnesium glycinate, creatine, beet root and MSM.*
Shop recoveryWomen's health
Vitex, DIM and Shatavari for hormonal balance.*
Shop women's healthRaw material to sealed bottle
Made under one roof — not handed off.
Most supplement brands put their label on someone else's product. We formulate, make and test ours in Santa Rosa, so one team owns every step.
Pure, spec-checked ingredients
Melatonin specified at 99%+ purity, plus rice fiber and a plant capsule.
A capsule that matches its label
Batch tested, sealed and shipped from the same facility.
Sourced to spec
We set the specification for every raw ingredient we buy.
Identity checked
Each ingredient lot is confirmed before production.
Made in-house
Blended and encapsulated in our cGMP facility.
Lab tested
Third-party testing for identity, purity, heavy metals and microbes.
Shipped direct
Sealed and sent from our facility to your door.
Featured products
Shop Sierra Life Sciences
Our most-ordered formulas — every one made and tested in-house.
Recovery
Magnesium Glycinate 150mg
Chelated, gentle magnesium for relaxation and recovery.*
Women's health
Vitex + DIM + Shatavari
Three botanicals for normal estrogen metabolism.*
Cellular energy
Acetyl-L-Carnitine 1000mg
Supports mitochondrial energy metabolism.*
What sets Sierra apart
Sierra next to a typical supplement brand
| What you get | Sierra Life Sciences | Typical brand |
|---|---|---|
| Who makes it | We do, in our own cGMP facility | Often a contract manufacturer |
| Testing | Every batch checked; third-party tested | Varies by brand |
| Ingredients | Short lists, no sugar, gelatin or dyes in capsules | Fillers, blends and added colors are common |
| Capsules | Vegan plant cellulose | Often gelatin |
| How it reaches you | Shipped direct from the facility | Through distributors and warehouses |
| Guarantee | 30-day money-back on your first order | Varies |
What sets Sierra apart
Sierra next to a typical low-cost supplement
Many budget supplements are imported in bulk and relabeled. Here's what's different when the maker is also the brand.
| What you get | Sierra Life Sciences | Typical low-cost brand |
|---|---|---|
| Who makes it | We do, in our own cGMP facility in Santa Rosa, CA | Often cheap bulk product made overseas and relabeled |
| Formulation control | Our team sets every formula and ingredient spec | Little or no control over what goes into the capsule |
| Documentation | Batch records and certificates of analysis for every lot | Paperwork is often thin, missing or can't be traced |
| Testing | Every batch checked; third-party tested | Varies — sometimes none beyond the supplier's word |
| Ingredients | Short lists; no sugar, gelatin or dyes in capsules | Fillers, blends and added colors are common |
| Capsules | Vegan plant cellulose | Often gelatin |
| How it reaches you | Shipped direct from the facility | Through importers, distributors and warehouses |
| Guarantee | 30-day money-back on your first order | Varies |
Comparison reflects common practices across the supplement market, not any specific brand.
Bulk powders
Pure ingredients, your amount
Single-ingredient powders in resealable bags — melatonin, NMN, ALCAR, creatine, magnesium glycinate and more. A milligram-accurate scale is required.
Shop bulk powdersSubscribe & save
15% off, every month
- One simple plan on every product
- Delivered monthly, never run out
- Manage or cancel from your account
Where are Sierra products made?
In our own cGMP facility in Santa Rosa, California. We formulate, blend, encapsulate and package in-house, and ship from the same building.
Are your products third-party tested?
Yes. Every batch is checked before release, and our products are third-party tested for identity, purity, heavy metals and microbes.
Are the capsules vegan?
Our capsules are plant cellulose — no gelatin. Our melatonin gummies are pectin-based.
How does Subscribe & Save work?
Choose the monthly subscription on any product to save 15% on every delivery. You can manage or cancel it any time from My Account.
What if a product isn't right for me?
Your first order is covered by our 30-day money-back guarantee. See our refund policy for details.
The research journal
Evidence, explained plainly
What the studies actually show — and where the research stops.
Quality
Third-party vs in-house testing: what the difference means
Who did the testing changes how much a label claim is worth.
Read article →Ingredients
Magnesium glycinate vs other forms: the absorption research
Why the compound magnesium is bound to matters.
Read article →Formulation
Vitex, DIM and Shatavari: why these three together
The reasoning behind a three-botanical blend.
Read article →Talk to a real person
Questions about a formula? Ask the people who make it.
Our Santa Rosa team can help with products, orders and subscriptions.