Introduction
Back in June, I acquired Arko shaving soap from @shavefan through a trade in the BST. (Thanks for the trade!) I recently went through my lather optimization process for the soap. Please see my lather optimization guide in the ShaveWiki for an overview, a disclaimer, and general information about optimizing lather.
Below is my optimum lather table and my review of Arko shaving soap. Overall, Arko is okay. At its best, it can provide some slickness and cushion/protection, but the post-shave is kind of dry with some irritation, at least for me. The price per shave is the lowest so far that I've experienced, but the lather density is also relatively low. I don't know about you, but I don't mind paying more than two cents per shave for a good lather.

Optimum Lather Table
PR | Performance Ranking |
PD | Purchase Date (YYYY-MM-DD) |
SCM | Soap/Cream Mass (g) |
WM | Water Mass (g) |
TM | Total Mass (g) = SCM + WM |
WSCR | Water-to-Soap/Cream Ratio = WM / SCM |
SCIT | Soap/Cream-Incorporation Time (s) |
LBT | Lather-Building Time (s) |
SCP | Soap/Cream Price (USD) |
PR | Soap/Cream | PD | SCM | WM | TM | WSCR | SCIT | LBT | SCP |
---|---|---|---|---|---|---|---|---|---|
1 | Nanny's Silly Soap (NSS) Original Shaving Soap | 2017-04-23 | 1.20 | 9.60 | 10.80 | 8 | 30 | 45 | 0.15 |
2 | Declaration Grooming (DG) Shaving Soap, Premium Bison Tallow Base | 2017-08-11 | 0.81 | 8.91 | 9.72 | 11 | 20 | 60 | 0.15 |
3 | Proraso Single Blade (PSB) Shaving Cream | 2018-01-12 | 0.95 | 7.60 | 8.55 | 8 | 3 | 60 | 0.07 |
4 | Barrister and Mann (B&M) Shaving Soap | 2017-10-19 | 0.71 | 8.52 | 9.23 | 12 | 25 | 30 | 0.12 |
5 | Cold River Soap Works (CRSW) SELECT Shaving Soap | 2017-12-15 | 0.86 | 9.46 | 10.32 | 11 | 6 | 60 | 0.15 |
6 | Stirling Soap Co. Shave Soap | 2017-08-14 | 0.53 | 9.01 | 9.54 | 17 | 20 | 30 | 0.04 |
7 | Saponificio Varesino (SV) Shaving Soap | 2017-12-01 | 0.64 | 8.32 | 8.96 | 13 | 90 | 90 | 0.15 |
8 | Barrister's Reserve Shaving Soap | 2017-06 | 0.96 | 11.52 | 12.48 | 12 | 45 | 60 | 0.15 |
9 | Proraso Red Shaving Soap | 2017-11-27 | 0.82 | 8.20 | 9.02 | 10 | 5 | 75 | 0.06 |
10 | Martin de Candre (MdC) Shaving Soap | 2018-05-31 | 0.70 | 7.70 | 8.40 | 11 | 45 | 60 | 0.16 |
11 | Mike's Natural Shaving Soap | 2017-09 | 0.75 | 9.00 | 9.75 | 12 | 60 | 60 | 0.07 |
12 | Arko Shaving Soap | 2018-04-04 | 0.51 | 7.14 | 7.65 | 14 | 75 | 75 | 0.02 |
13 | Barrister and Mann (B&M) Latha Shaving Soap (Discontinued) | 2018-01-30 | 0.75 | 9.75 | 10.50 | 13 | 10 | 30 | 0.07 |
14 | Floris Shaving Cream | 2018-02 | 0.98 | 6.86 | 7.84 | 7 | 1 | 60 | 0.29 |
15 | The Art of Shaving (AOS) Shaving Cream | 2018-01-03 | 1.00 | 7.00 | 8.00 | 7 | 3 | 45 | 0.19 |
16 | Mystic Water (MW) Shaving Soap | 2018-01-27 | 0.70 | 9.10 | 9.80 | 13 | 30 | 30 | 0.07 |
17 | The Sudsy Soapery Shave Soap | 2018-02-05 | 0.46 | 8.28 | 8.74 | 18 | 10 | 60 | 0.05 |
Arko Shaving Soap
Stick of soap, close-up of soap in small jar, and ingredient list
Purchase Date: April 4, 2018. I acquired the shaving soap from @shavefan through a trade in the BST on June 28, 2018 [8].
Review Period: November 19 to 29, 2018. 10 optimization shaves and 1 ranking test.
Manufacturing Location: Turkey
Ingredients: Potassium Tallowate, Potassium Stearate, Sodium Palm Kernelate, Aqua, Glycerin, Potassium Cocoate, Parfum, Paraffinum Liquidum, Tetrasodium EDTA, CI 77891, Etidronic Acid, Sodium Chloride, Disodium Distyrylbiphenyl Disulfonate, Linalool, Limonene, Citronellol, Geraniol
Appearance: Off-white
Scent: Kind of lemony, but not good to my nose
Hardness: Hard
Optimum Lather Overview: Sheen is matte to okay. Lather has some stiff and some good "peaking" and some yogurt-like behavior of "stringiness". Adhesion is okay to pretty good. Application is okay to pretty good, but kind of choppy. The scent is slightly noticed. Slickness is generally okay to good with a little very good slickness and some moderate friction. Cushion/protection is okay or pretty good. Post-shave is kind of dry and okay with respect to comfort because of some irritation that develops. There is a little clogging of the razor.
Optimization Details: Water-to-soap ratio was varied from 10 to 26 in nonsequential shaves. At a ratio of 10, soap incorporation took almost two minutes and the resulting lather was too dry with inferior slickness and post-shave. In general, with more hydration, slickness and post-shave improved, peaked, and decreased. The optimum water-to-soap ratio was found to be around 14 where the slickness was near the optimum and the balance of slickness, post-shave, and other properties was determined to be the best. At that point, a little more water was found to increase slickness, but decrease post-shave quality. The post-shave was felt to be the limiting factor with dryness and irritation, but it wasn't bad. The optimization of lather-building time was easy because more time beyond what was needed for soap incorporation would have added more aeration and decreased slickness, based on past experience.
Ranking Details: Relative to prior optimization results, it was estimated that Arko should be ranked right below Mike's Natural and above B&M Latha. A ranking test against Mike's Natural was desired for validation. In sequential shaves, the optimum lather with Arko was compared to the optimum lather with Mike's Natural. Adhesion, application, and slickness were better with Mike's Natural. Post-shave moisture with Mike's Natural was better, but post-shave comfort with Mike's Natural was worse because it involved more irritation. Overall, Mike's Natural slightly beat out Arko, as expected.