Specialty Gel Polish

P5 Neptune

$20 USD

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Cold - Royal purple, solid finish
Hot - Fuchsia pink, solid finish

PHASES is a colour changing three-step gel polish formula requiring use with BSG Base and Top. Colours change in hot and cold temperature for two looks in one. 

Individual Size: 15 mL (0.50 fl.oz)


Enjoy a traditional gel polish manicure with our 3STEP Colour Gel Polish! Achieve salon-quality like nails in the comfort of your own home.

1. Prep your nails: lightly buff nails and cleanse with 70%+ alcohol to remove oils and dusts. Wait for nails to dry completely. No primers, bonders or heavy sanding required.

2. Apply a thin coat of base gel polish. 3STEP is optimized for use with our Base-1 Gel Polish or Base Sculpting Gel. Cure for 30 seconds in LED lamp or 60 seconds in UV lamp. Note: base gel will always remain tacky even after curing.

3. Apply a thin coat of 3STEP Gel Polish and do not cap the free edge. For best gel colour application always shake well before use and paint in thin layers. 

4. Cure for 60 seconds in LED lamp or 120 seconds in UV lamp. Our 3STEP Gel Polish is optimized for use with our U-Light Pro 6. For all other lamps, we recommend to double the cure time.

5. Repeat steps 3 & 4 until coverage and desired opacity is reached.

6. Apply a thin coat of top gel polish. 3STEP is optimized for use with our No-Wipe Top Gel Polish or Top Sculpting GelCure for 60 seconds in LED lamp or 120 seconds in UV lamp.

Click here for full 3STEP manicure instructions

View #BSGNeptune on Instagram to see this shade as worn by our #BSGSquad!

See more shades of #BSGPurple and #BSGPink

Tag your #bioseaweedgel photos for your chance to be featured on our page:
1. Tag us @bioseaweedgel and #bioseaweedgel
2. Tag the colour name #BSGColourName
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Customer Reviews

Based on 10 reviews
Tammy Kokkaliaris
Incredible !!!

I love this concept of the color change. Goes from blue to purple and then somehow blue with purple tips. Wow!!
I have received so many complements on this polish. Will be ordering more colors .


This nail polish is so fun. It changes from a bright purple with blue shimmer when cold to a light blue when warm. I used a white- unity 3 in 1 as a base and just added top coat and it still worked great. Highly recommend.

Fun and stunning colour changing polish

I bought this because of the deep Royal blurple - it is STUNNING and looks even more beautiful when you get the ombré effect. I love looking down at my nails and getting surprised about what colour they are as they are always changing.

Magic on your nails !

Got to create a mood ring design and this colour-changing thermal polish came in handy! It was the most perfect polish to use for this set and could not have achieved this look and effect without it :) Literally cannot wait to get more from the phases collection and create more design with it !!!!

Elyse W
Cutest Color!

I absolutely love this color! It changes from dark purple in cold to an almost sheer light purple in the heat. Such a cute color at all phases. Highly recommend.

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