This technique was extensively discussed on PheroTruth circa 2012, pioneered by users experimenting with LaCroy/Love Scent products.

What Is the Build-Up Routine?

The build-up routine is an advanced application technique where you layer pheromones over multiple days, allowing them to “build up” in your skin and metabolize into longer-lasting forms.

The key insight from forum user JohnnyHard:

“I applied it last night before going to sleep and in the morning I took a shower but washed the application point with plain water only, no soap. I’ll keep doing that thing for a few days and see where it leads.”

The Basic Protocol

Day 1: Initial Application

  • Apply your pheromone product to pulse points before bed
  • Use normal dosage (2-3 drops)
  • Let it absorb overnight

Days 2-4: Preservation

  • Shower normally, but wash application points with plain water only (no soap)
  • Apply a fresh light layer on top (1-2 drops)
  • The previous day’s application remains partially in the skin

Day 5+: Maintenance

  • Continue the water-only wash routine
  • Fresh applications become optional
  • “Next day hits” reportedly continue even without fresh application

Why It Works (Theory)

Forum member Pheroman explained the mechanism:

“The LaCroy stuff metabolizes into something else, together with skin sweat + maybe some fresh mones.”

The theory is that:

  1. Skin absorption - Some pheromone molecules absorb into sebaceous glands
  2. Metabolic conversion - Body chemistry converts/stabilizes the molecules
  3. Slow release - Built-up molecules release gradually over time
  4. Synergy with sweat - Natural secretions blend with applied pheromones

Important Cautions

Don’t Stack Fresh Products on Top

From Pagodeiro’s warning:

“I’ve tried using some None product with the routine… you have to be careful what you’re doing there. Not because of the none, it’s because you can give off a very dominant vibe if you add something like None. Honestly there is nooo need for extra none with the routine.”

Translation: The build-up creates a stronger effect than expected. Adding more androstenone on top can overdose you easily.

Products Best Suited for This

The routine was developed specifically with:

  • New Pheromone Additive (NPA) - high androstenone
  • LaCroy products (now under different names)
  • Products with good skin absorption

Not all products work equally well - oil-based seems better than alcohol-based.

What the Build-Up Creates

Users reported the accumulated effect produces:

  • Sustained presence - Effects continue even after showering
  • Natural integration - Blends with your own chemistry
  • Stronger than expected - Don’t underestimate the cumulative dose
  • Multi-day duration - “Next day hits” are common reports

Who Should Try This

Good candidates:

  • Experienced users who know their dosage sensitivity
  • Those with stable routines (same product, same application)
  • Users seeking low-maintenance long-term presence

Not recommended for:

  • Beginners (learn normal application first)
  • Those still testing products
  • Variable dosage experimenters

Variations

The Hair Application

From the forum discussion on DHEAS:

“High doses of DHEAS (200-400mcg) are best applied to hair to avoid skin irritation and slow diffusion.”

Hair can act as a reservoir for some pheromones, releasing slowly throughout the day.

The Spot Rotation

Some users rotate application spots:

  • Day 1: Neck
  • Day 2: Chest
  • Day 3: Wrists
  • Day 4: Back to neck

This prevents over-saturation of any single area while building overall presence.

Summary Protocol

  1. Night 1: Apply normal dose, let absorb overnight
  2. Morning: Shower with water only at application points
  3. Repeat for 3-5 days
  4. Assess - You may find you need no fresh application
  5. Caution - Don’t add aggressive molecules on top

Source: PheroTruth Forum archive, “The magic LaCroy build-up routine with New Pheromone Additive” thread, circa 2012. Contributors: JohnnyHard, Pagodeiro, Pheroman, Jolly Jumper.