The triathlete problem set (and why long-course is brutal)

What the triathlete’s body needs to perform

Mitochondrial output & energy economy

  • Improve mitochondrial quality control (mitophagy/autophagy) to clear damaged mitochondria.
  • Enhance metabolic flexibility to spare glycogen and stabilize RPE across hours.
  • Support ATP production for steady power on the bike and late-run resilience.
  • Recovery inputs that play well with fueling (carbs/protein) and don’t add gut noise before the run.

Muscles

Muscle repair & soreness control

  • Accelerate muscle protein synthesis after tempo rides, bricks, and threshold swims.
  • Reduce eccentric/impact cost for the run off the bike.
Cartilage

Tendon, joint & soft-tissue durability

  • Support collagen synthesis and cartilage ECM (proteoglycans, hyaluronan) for shoulders, hips, knees/ankles, Achilles.
  • Aid inflammation resolution without blunt over-suppression.
Veins

Vascular flow & thermoregulation

  • Maintain endothelial function and micro-circulation for nutrient delivery, metabolite clearance, and heat management (especially in aero and in heat/humidity).
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Sleep, CNS & immune resilience

  • Downshift sympathetic tone for deeper SWS/REM after double days.
  • Keep immune readiness during peak blocks and travel to avoid missed sessions.
Green Fuel

GI compatibility

  • Recovery inputs that play well with fueling (carbs/protein) and don’t add gut noise before the run.
Person running on a road by the sea

What does it mean for you?

You need more than carbs and a protein shake. Triathlon performance is built on mitochondrial efficiency, tissue remodeling, connective-tissue resilience, vascular flow, heat control, GI-friendly recovery, and deep restorative sleep. Support those upstream systems and you don’t just feel better—you hold power longer, run stronger off the bike, and recover fast enough to stack great sessions. Think minerals and bioactives that support energy production, recovery signaling, and tissue renewal—without adding GI noise.

How Pürblack works as a system

Two black containers with 'White Rabbit' branding on a light gray background

Morning Activation (Energy Economy & Focus)

Research Grade shilajit Resin (AM)
  • Rich in ashless humic acids, fulvic acids, and 80+ bioactive minerals supporting the urolithin-A pathway—linked to mitophagy and improved mitochondrial efficiency.
  • Promotes clean, stimulant-free ATP production and steadier perceived energy for long rides and pre-run bricks.
  • Neutral profile pairs with pre-session carbs/protein without GI drama.
Optional AM variant — White Rabbit® Vive
  • Introducing White Rabbit Shilajit Resins—our advanced shilajit infused with subtle, natural flavors and aromas for an enhanced experience… Enjoy the journey to peak performance with a touch of flavor.
  • Use when you want gentle AM activation with a smoother sensory profile.
Three supplement containers labeled 'BCAA', 'Muscle+', and 'Vascular+' on a white background.

Post-Session / Midday (Repair, Flow 
& Transition Readiness)

Muscle+ Peptide Capsules (NSF Certified for Sport®)
  • Targeted peptides + BCAAs to support muscle regeneration pathways, restoring force output for the second session or next day’s brick.
  • Helps reduce post-effort fatigue from threshold sets and hill work.
Vascular+ Peptide Capsules
  • Supports vascular tone and micro-circulation to clear metabolites and reduce stiffness—especially useful between sessions (swim→bike, bike→run) and after long aero efforts.
Two dietary supplement containers labeled 'Joint+' and 'Serene' on a light gray background.

Evening Downshift 
(Deep Sleep & Connective-Tissue Care)

White Rabbit® Serene shilajit Resin (PM)
  • Adaptogenic evening resin to promote parasympathetic balance, sleep quality, and overnight hormonal milieu so tissues actually rebuild.
Joint+ Peptide Capsules (NSF Certified for Sport®)
  • Targets cartilage anabolism and connective-tissue nutrition to support shoulder (swim), hips/knees (bike/run), ankles/Achilles under repetitive load.

Science notes

Urolithin-A & mitophagy: our shilajit features increased urolithin-A content, associated with activation of mitophagy—the cell’s cleanup of damaged mitochondria—leading to improved endurance, reduced perceived fatigue, and better energy economy over multi-hour efforts.

Fulvic/humic matrix: facilitates mineral transport and supports redox balance for mitochondrial enzymes (ETC/TCA), relevant when glycogen wanes late on the bike or run.

Peptide signaling (Muscle+): short-chain peptides can nudge MPS and repair pathways, aiding recovery after threshold sets and bricks so neuromuscular quality is repeatable.

Joint/ECM support (Joint+): designed to support collagen/hyaluronan dynamics and cartilage ECM, key for repetitive shoulder rotation and run impact after hours in aero.

Vascular tone (Vascular+): supports endothelial function and micro-flow, aiding nutrient delivery and thermoregulation in heat/humidity and at altitude.

Sleep architecture (Serene): better SWS/REM → more complete muscle/connective repair and CNS restoration after double days.

These physiology notes are supportive and not medical claims. Consult your doctor as needed.

Protocols for triathletes

Sprint / Olympic Build (25-35hr/wk)

AM: Research Grade (or Vive)

Post-AM: Muscle+

PM: Serene & Joint+

Add: Vascular+ on brick days

Why: Steady ATP + repeatable quality with minimal next-day cost

Prep ( 20-35 hr/wk, 6-10 weeks)

AM: Research Grade

Midday: Muscle+ & Vascular+

Add: Serene & Joint+

Why: Support long rides + long runs + bricks; deeper nightly rebuild

Ironman / Full Distance (20-35+ hr/wk, 8-12 weeks)

AM: Research Grade (daily); Vive optional on lighter days

Post-AM session: Muscle+ daily; Vascular+ after long aero/brick sessions

PM: Serene & Joint+ nightly

Race-specific: Emphasize GI-friendly recovery timing (within 60 min post)

Why: Protect soft tissue, sustain power, preserve CNS for marathon off the bike

Heat / Humidity / Altitude Blocks

AM: Research Grade

Midday: Vascular+

PM: Serene

Plus: Hydration strategy + Immunity Max during travel

Why: Flow/thermoregulation, sleep, and immune support under environmental stress

Brick Focus Weeks (run-off-bike emphasis)

AM (pre-bike): Research Grade

Between sessions: Vascular+

Post-run: Muscle+

PM: Serene & Joint+

Why: Faster transition readiness and reduced stiffness for T2 quality

Sprint / Olympic Build (25-35hr/wk)

AM: Research Grade (or Vive)

Post-AM: Muscle+

PM: Serene & Joint+

Add: Vascular+ on brick days

Why: Steady ATP + repeatable quality with minimal next-day cost

Prep ( 20-35 hr/wk, 6-10 weeks)

AM: Research Grade

Midday: Muscle+ & Vascular+

Add: Serene & Joint+

Why: Support long rides + long runs + bricks; deeper nightly rebuild

Ironman / Full Distance (20-35+ hr/wk, 8-12 weeks)

AM: Research Grade (daily); Vive optional on lighter days

Post-AM session: Muscle+ daily; Vascular+ after long aero/brick sessions

PM: Serene & Joint+ nightly

Race-specific: Emphasize GI-friendly recovery timing (within 60 min post)

Why: Protect soft tissue, sustain power, preserve CNS for marathon off the bike

Heat / Humidity / Altitude Blocks

AM: Research Grade

Midday: Vascular+

PM: Serene

Plus: Hydration strategy + Immunity Max during travel

Why: Flow/thermoregulation, sleep, and immune support under environmental stress

Brick Focus Weeks (run-off-bike emphasis)

AM (pre-bike): Research Grade

Between sessions: Vascular+

Post-run: Muscle+

PM: Serene & Joint+

Why: Faster transition readiness and reduced stiffness for T2 quality

Why Pürblack as a system (not a single pill)

  • Inputs → Processing → Outputs:
    Shilajit minerals/resins (inputs) improve transport and mitochondrial processing; peptides (processing) signal repair/regeneration; result (outputs) is more repeatable power on the bike and a faster, lighter run off the bike.
  • AM/PM orchestration:
    Activation when you need it; downshift when you must—recovery by design, not chance.
  • Synergy for tri:
    Urolithin-A–linked mitophagy + peptide-driven repair + vascular flow + sleep depth + GI-friendly pairing = a closed loop for swim–bike–run realities.

Athletes Stories

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Angela Naeth

Angela Naeth is an internationally acclaimed professional triathlete and endurance athlete known for her exceptional bike strength, mental resilience, and competitive longevity. Over her career, she has earned 19 IRONMAN 70.3 victories, 36 podium finishes, and three full IRONMAN wins, all in sub-9-hour performances, including an 8th place finish at the 2018 IRONMAN World Championship. Beyond racing, Angela is the founder of I Race Like A Girl, a global women’s endurance community, and leads Angela Naeth Coaching, supporting athletes across triathlon, cycling, and running with a science-driven, athlete-first approach.

Angela stated her Pürblack journey in the fall of 2024 with shilajit resins and recently added peptides to her regimen.

"I started taking Purblack Shilajit without big expectations, but one of the first things I noticed was how much more complete my sleep felt.  I began waking up feeling more restored, which as a triathlete made an immediate difference in how I showed up to training and daily life. That sense of recovery set the tone for everything else.

"As the weeks went on, I noticed a shift in how I approached my workouts, especially my swim. I felt more creative and connected in the water. I felt more aware of feel, rhythm, and efficiency rather than just going through the motions. Instead of forcing sessions, I found myself thinking more intentionally about technique and flow, which carried over into biking and running as well. Training felt more integrated, like each discipline was supporting the others rather than competing for energy.

"What I appreciate most about Purblack Shilajit is how it fits into a long-term, mindful approach to performance and wellness. It doesn’t feel like a stimulant or a shortcut. Instead, it supports recovery, clarity, and consistency: the things that really matter when you’re balancing swim, bike, run, and life outside of training. It’s become a simple but meaningful part of my daily routine."

Products uses:

Shilajit: True Gold, Research Grade, Deja Brew

White Rabbit: Vive

Peptides: Muscle+, Joint+, Brain AM, Brain PM

FAQ

  • Triathletes & Ironman
  • Shipping & Orders
  • Subscriptions
  • Return, Refund & Replacements
Is this only for long-course? +

No—effective from Sprint through Ironman. Increase Serene/Joint+ emphasis as hours/vert rise.

Can I use Vive instead of Research Grade in the morning? +

Yes—Vive offers a smoother sensory profile; Research Grade is a neutral AM workhorse.

Do MUSCLE+ and JOINT+ stack? +

Yes—many triathletes use both during brick blocks and peak phases. (Both are NSF Certified for Sport®.)

What about heat or altitude races? +

Add Vascular+ for flow/thermoregulation, and Immunity Max for travel/race weeks.

How does this fit with my fueling? +

All products are GI-compatible when used as directed. Better used on empty stomach but you can keep standard carb/protein windows for training and racing.

When will my order be shipped? +

Orders take 1-2 business days to process and are shipped promptly. We do not ship orders during the weekend or during US holidays.

Orders are confirmed when they get a tracking number.

How do I track my order? +

Orders take 1-2 business days to process and are shipped promptly. We do not ship orders during the weekend or during US holidays.

Orders are confirmed when they get a tracking number.

How do I track my order? +

Use our chat box to track your order or get updates directly from your email. Order updates are sent to your registered email and will have a tracking link available.

Where can I find my order number? +

You can find your order number in the order notification sent to you via email.

How much do you charge for shipping? +

All orders shipped to the USA are shipped free.

For overseas orders, order weight and location determine the shipping rates in real time.

You can check for shipping rates by adding the product you like to the cart, then proceed to checkout.

In the checkout, add in your address and allow the page to get real time shipping rates.

UPS, DHL and USPS handle domestic USA shipping and UPS, DHL and USPS for international shipping.

Customs fees and charges are not included in the shipping offer.

At this time, due to custom regulations we are unable to ship to Mexico

Do you cover customs fees and charges? +

Shipping cost does not include the majority of customs fees and charges.

Failure to pay customs fees required to complete delivery may result in your package being abandoned by the courier. No refund will be issued for abandoned items.

Packages that are refused delivery or are returned for other reasons will incur return fees and may no longer qualify for a full refund.

Can I still change my address after my order is shipped out? +

No, you cannot, but you can ask the courier to intercept your package. The courier will hold your package awaiting further instructions. Please call the courier service for more details.

What if I didn't receive my order and the status says returned to sender? +

A problem in your address or that the package cannot be delivered could be the reason for why it was returned. To reship your order, we need the payment of a return fee + new shipping fees whenever applicable.

Return fees are fees charged by UPS for orders returned to us and vary depending on the size and weight of the order.

If my order/shipment states return to sender, can I get a refund instead? +

We can refund upon payment of the return fee. The fee can be deducted from the total amount available for refund.

If my order arrived damaged or broken, what should I do? +

Contact us soon as possible for assistance and provide all necessary files and documents:

  • Receipt or invoice
  • Photos of your package and contents
  • Shipping label posted on the box
  • The documents included in the shipment if any
  • Photos of the Items broken
  • Any other relevant information

We can reship you the broken or damaged order or you can also file a claim with the courier service if your order arrived damaged to recover the value of the broken order. We are happy to assist you in all courier claims as best as we can.

If my package is missing an item what should I do? +

Contact us soon as possible for assistance and provide all necessary files and documents.

  • Receipt or invoice
  • Detailed photos of your package. Include photos of your package in its current condition.
  • Shipping label
  • Documents included in the shipment clearly that clearly identify the contents and what is expected

We can ship you the missing items or you can also file a claim with the courier service if your order arrived damaged. We are happy to assist you in all courier claims as best as we can.

What are subscriptions? +

Subscriptions are recurring discounted monthly orders. They allow you to automate delivery and maintain your supply for a discounted cost and are the perfect option if you need a guaranteed supply of your product.

How do I manage my subscription? +

A link is provided in the subscription confirmation email allowing you access to your customer portal. You can update your address, skip or change order dates, add, remove or swap products in the subscription, and many more.

If I want to cancel a subscription order what do I do? +

You can cancel your subscription at any time before the order is dispatched and the tracking number assigned.

You will be notified five days in advance of a scheduled order being dispatched.

Access your customer subscription portal and modify or change your next order date accordingly. If you need assistance, please contact us.

How do I change my payment information? +

Log-in to your customer portal and change your payment details. If you need assistance, please contact us.

How do I skip the next order? +

Access your customer portal to make edits to your subscription.

Can I change my order frequency? +

Yes, you can change your order frequency between 30 days and 60 days. If you'd like to make this change, please contact us at purblack.com/contact-us

Can I change the items in my order? +

Yes you make adjustments to the products in your subscriptions for eligible products.

What is your return policy? +

Returns are allowed within 30 days of delivery. Some conditions apply.

Initiate the return process by submitting a request through our Contact Us page.

For hygiene reasons, your item must meet certain criteria to qualify for a return. It should be in its original condition, unopened, unused, and in the original packaging.

Additionally, a valid receipt or proof of purchase.

What is your refund policy? +

Upon receiving and inspecting your return, we will notify you of the approval. If approved, a refund will be automatically processed to your original payment method. Keep in mind that it may take some time for your bank or credit card company to complete the refund transaction.

Any returns fee due an order will be deducted from the final refund amount.

Build the engine. Keep it running.

Use the Tri Stack daily, layer Vascular+/Immunity during stress windows, and keep Serene nightly in peak. The outcome: more quality sessions, smoother transitions, and a stronger run off the bike.